Home / 72,732,196.95-100,372,559.70-39,694,565.08

Finding the Fourth Proportional to 72,732,196.95, 100,372,559.70 and 39,694,565.08

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Solution

The fourth proportional to 72,732,196.95, 100,372,559.70 and 39,694,565.08 is: 54,779,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,732,196.95 : 100,372,559.70 = 39,694,565.08 : x
  2. Step 2: Convert to fraction form
    72,732,196.95/100,372,559.70 = 39,694,565.08/x
  3. Step 3: Cross multiply
    72,732,196.95x = 100,372,559.70 × 39,694,565.08
  4. Step 4: Simplify right side
    72,732,196.95x = 3,984,245,103,257,835
  5. Step 5: Solve for x
    x = 3,984,245,103,257,835/72,732,196.95
  6. Step 6: Final answer
    x = 54,779,661.15

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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.