Home / 371,900,346.11-557,678,135.43-138,668,435.16

Finding the Fourth Proportional to 371,900,346.11, 557,678,135.43 and 138,668,435.16

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Solution

The fourth proportional to 371,900,346.11, 557,678,135.43 and 138,668,435.16 is: 207,938,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,900,346.11 : 557,678,135.43 = 138,668,435.16 : x
  2. Step 2: Convert to fraction form
    371,900,346.11/557,678,135.43 = 138,668,435.16/x
  3. Step 3: Cross multiply
    371,900,346.11x = 557,678,135.43 × 138,668,435.16
  4. Step 4: Simplify right side
    371,900,346.11x = 77,332,354,360,545,088
  5. Step 5: Solve for x
    x = 77,332,354,360,545,088/371,900,346.11
  6. Step 6: Final answer
    x = 207,938,376.96

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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.