Home / 72,731,925.08-100,372,182.52-39,694,294.55

Finding the Fourth Proportional to 72,731,925.08, 100,372,182.52 and 39,694,294.55

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Solution

The fourth proportional to 72,731,925.08, 100,372,182.52 and 39,694,294.55 is: 54,779,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,731,925.08 : 100,372,182.52 = 39,694,294.55 : x
  2. Step 2: Convert to fraction form
    72,731,925.08/100,372,182.52 = 39,694,294.55/x
  3. Step 3: Cross multiply
    72,731,925.08x = 100,372,182.52 × 39,694,294.55
  4. Step 4: Simplify right side
    72,731,925.08x = 3,984,202,977,913,102.50
  5. Step 5: Solve for x
    x = 3,984,202,977,913,102.50/72,731,925.08
  6. Step 6: Final answer
    x = 54,779,286.72

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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.