Home / 72,731,925.23-100,372,182.73-39,694,294.69

Finding the Fourth Proportional to 72,731,925.23, 100,372,182.73 and 39,694,294.69

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Solution

The fourth proportional to 72,731,925.23, 100,372,182.73 and 39,694,294.69 is: 54,779,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,731,925.23 : 100,372,182.73 = 39,694,294.69 : x
  2. Step 2: Convert to fraction form
    72,731,925.23/100,372,182.73 = 39,694,294.69/x
  3. Step 3: Cross multiply
    72,731,925.23x = 100,372,182.73 × 39,694,294.69
  4. Step 4: Simplify right side
    72,731,925.23x = 3,984,202,999,612,983
  5. Step 5: Solve for x
    x = 3,984,202,999,612,983/72,731,925.23
  6. Step 6: Final answer
    x = 54,779,286.91

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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.