Home / 72,732,202.57-100,372,567.46-39,694,570.71

Finding the Fourth Proportional to 72,732,202.57, 100,372,567.46 and 39,694,570.71

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Solution

The fourth proportional to 72,732,202.57, 100,372,567.46 and 39,694,570.71 is: 54,779,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,732,202.57 : 100,372,567.46 = 39,694,570.71 : x
  2. Step 2: Convert to fraction form
    72,732,202.57/100,372,567.46 = 39,694,570.71/x
  3. Step 3: Cross multiply
    72,732,202.57x = 100,372,567.46 × 39,694,570.71
  4. Step 4: Simplify right side
    72,732,202.57x = 3,984,245,976,385,215
  5. Step 5: Solve for x
    x = 3,984,245,976,385,215/72,732,202.57
  6. Step 6: Final answer
    x = 54,779,668.92

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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.