Home / 840,107,136.70-1,260,160,705.05-725,221,402.30

Finding the Fourth Proportional to 840,107,136.70, 1,260,160,705.05 and 725,221,402.30

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Solution

The fourth proportional to 840,107,136.70, 1,260,160,705.05 and 725,221,402.30 is: 1,087,832,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,107,136.70 : 1,260,160,705.05 = 725,221,402.30 : x
  2. Step 2: Convert to fraction form
    840,107,136.70/1,260,160,705.05 = 725,221,402.30/x
  3. Step 3: Cross multiply
    840,107,136.70x = 1,260,160,705.05 × 725,221,402.30
  4. Step 4: Simplify right side
    840,107,136.70x = 913,895,513,639,717,632
  5. Step 5: Solve for x
    x = 913,895,513,639,717,632/840,107,136.70
  6. Step 6: Final answer
    x = 1,087,832,103.45

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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.