Home / 1,208,657,347.40-1,812,986,021.10-841,325,328.20

Finding the Fourth Proportional to 1,208,657,347.40, 1,812,986,021.10 and 841,325,328.20

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Solution

The fourth proportional to 1,208,657,347.40, 1,812,986,021.10 and 841,325,328.20 is: 1,261,987,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,657,347.40 : 1,812,986,021.10 = 841,325,328.20 : x
  2. Step 2: Convert to fraction form
    1,208,657,347.40/1,812,986,021.10 = 841,325,328.20/x
  3. Step 3: Cross multiply
    1,208,657,347.40x = 1,812,986,021.10 × 841,325,328.20
  4. Step 4: Simplify right side
    1,208,657,347.40x = 1,525,311,059,223,969,536
  5. Step 5: Solve for x
    x = 1,525,311,059,223,969,536/1,208,657,347.40
  6. Step 6: Final answer
    x = 1,261,987,992.30

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Double scale
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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.