Home / 437,815,580.60-656,290,218.90-207,379,638.20

Finding the Fourth Proportional to 437,815,580.60, 656,290,218.90 and 207,379,638.20

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Solution

The fourth proportional to 437,815,580.60, 656,290,218.90 and 207,379,638.20 is: 310,864,286.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,815,580.60 : 656,290,218.90 = 207,379,638.20 : x
  2. Step 2: Convert to fraction form
    437,815,580.60/656,290,218.90 = 207,379,638.20/x
  3. Step 3: Cross multiply
    437,815,580.60x = 656,290,218.90 × 207,379,638.20
  4. Step 4: Simplify right side
    437,815,580.60x = 136,101,228,149,680,784
  5. Step 5: Solve for x
    x = 136,101,228,149,680,784/437,815,580.60
  6. Step 6: Final answer
    x = 310,864,286.66

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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.