Home / 717,673,304.25-990,389,557.17-387,648,443.25

Finding the Fourth Proportional to 717,673,304.25, 990,389,557.17 and 387,648,443.25

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Solution

The fourth proportional to 717,673,304.25, 990,389,557.17 and 387,648,443.25 is: 534,955,066.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,673,304.25 : 990,389,557.17 = 387,648,443.25 : x
  2. Step 2: Convert to fraction form
    717,673,304.25/990,389,557.17 = 387,648,443.25/x
  3. Step 3: Cross multiply
    717,673,304.25x = 990,389,557.17 × 387,648,443.25
  4. Step 4: Simplify right side
    717,673,304.25x = 383,922,970,048,007,360
  5. Step 5: Solve for x
    x = 383,922,970,048,007,360/717,673,304.25
  6. Step 6: Final answer
    x = 534,955,066.29

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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.