Home / 840,118,209.20-1,260,177,313.80-726,872,001.20

Finding the Fourth Proportional to 840,118,209.20, 1,260,177,313.80 and 726,872,001.20

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Solution

The fourth proportional to 840,118,209.20, 1,260,177,313.80 and 726,872,001.20 is: 1,090,308,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,118,209.20 : 1,260,177,313.80 = 726,872,001.20 : x
  2. Step 2: Convert to fraction form
    840,118,209.20/1,260,177,313.80 = 726,872,001.20/x
  3. Step 3: Cross multiply
    840,118,209.20x = 1,260,177,313.80 × 726,872,001.20
  4. Step 4: Simplify right side
    840,118,209.20x = 915,987,605,948,646,400
  5. Step 5: Solve for x
    x = 915,987,605,948,646,400/840,118,209.20
  6. Step 6: Final answer
    x = 1,090,308,001.80

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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.