Home / 717,494,066.40-990,141,802.56-387,469,176.24

Finding the Fourth Proportional to 717,494,066.40, 990,141,802.56 and 387,469,176.24

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Solution

The fourth proportional to 717,494,066.40, 990,141,802.56 and 387,469,176.24 is: 534,707,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,494,066.40 : 990,141,802.56 = 387,469,176.24 : x
  2. Step 2: Convert to fraction form
    717,494,066.40/990,141,802.56 = 387,469,176.24/x
  3. Step 3: Cross multiply
    717,494,066.40x = 990,141,802.56 × 387,469,176.24
  4. Step 4: Simplify right side
    717,494,066.40x = 383,649,428,598,711,936
  5. Step 5: Solve for x
    x = 383,649,428,598,711,936/717,494,066.40
  6. Step 6: Final answer
    x = 534,707,458.31

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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.