Home / 399,242,078.16-550,975,220.97-240,522,165.39

Finding the Fourth Proportional to 399,242,078.16, 550,975,220.97 and 240,522,165.39

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Solution

The fourth proportional to 399,242,078.16, 550,975,220.97 and 240,522,165.39 is: 331,933,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,242,078.16 : 550,975,220.97 = 240,522,165.39 : x
  2. Step 2: Convert to fraction form
    399,242,078.16/550,975,220.97 = 240,522,165.39/x
  3. Step 3: Cross multiply
    399,242,078.16x = 550,975,220.97 × 240,522,165.39
  4. Step 4: Simplify right side
    399,242,078.16x = 132,521,753,223,938,128
  5. Step 5: Solve for x
    x = 132,521,753,223,938,128/399,242,078.16
  6. Step 6: Final answer
    x = 331,933,331.86

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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.