Home / 1,292,210,772.48-1,783,241,637.12-705,499,891.20

Finding the Fourth Proportional to 1,292,210,772.48, 1,783,241,637.12 and 705,499,891.20

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Solution

The fourth proportional to 1,292,210,772.48, 1,783,241,637.12 and 705,499,891.20 is: 973,584,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,210,772.48 : 1,783,241,637.12 = 705,499,891.20 : x
  2. Step 2: Convert to fraction form
    1,292,210,772.48/1,783,241,637.12 = 705,499,891.20/x
  3. Step 3: Cross multiply
    1,292,210,772.48x = 1,783,241,637.12 × 705,499,891.20
  4. Step 4: Simplify right side
    1,292,210,772.48x = 1,258,076,780,971,469,824
  5. Step 5: Solve for x
    x = 1,258,076,780,971,469,824/1,292,210,772.48
  6. Step 6: Final answer
    x = 973,584,811.21

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Double scale
Find fourth proportional to 1,292,210,773.48, 1,783,241,638.50 and 705,499,892.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.