Home / 1,076,128,625.40-1,614,192,938.10-815,935,111.80

Finding the Fourth Proportional to 1,076,128,625.40, 1,614,192,938.10 and 815,935,111.80

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Solution

The fourth proportional to 1,076,128,625.40, 1,614,192,938.10 and 815,935,111.80 is: 1,223,902,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,128,625.40 : 1,614,192,938.10 = 815,935,111.80 : x
  2. Step 2: Convert to fraction form
    1,076,128,625.40/1,614,192,938.10 = 815,935,111.80/x
  3. Step 3: Cross multiply
    1,076,128,625.40x = 1,614,192,938.10 × 815,935,111.80
  4. Step 4: Simplify right side
    1,076,128,625.40x = 1,317,076,695,415,393,792
  5. Step 5: Solve for x
    x = 1,317,076,695,415,393,792/1,076,128,625.40
  6. Step 6: Final answer
    x = 1,223,902,667.70

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Half scale
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Double scale
Find fourth proportional to 1,076,128,626.40, 1,614,192,939.60 and 815,935,112.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.