Home / 72,732,191.45-100,372,552.11-39,694,559.58

Finding the Fourth Proportional to 72,732,191.45, 100,372,552.11 and 39,694,559.58

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Solution

The fourth proportional to 72,732,191.45, 100,372,552.11 and 39,694,559.58 is: 54,779,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,732,191.45 : 100,372,552.11 = 39,694,559.58 : x
  2. Step 2: Convert to fraction form
    72,732,191.45/100,372,552.11 = 39,694,559.58/x
  3. Step 3: Cross multiply
    72,732,191.45x = 100,372,552.11 × 39,694,559.58
  4. Step 4: Simplify right side
    72,732,191.45x = 3,984,244,249,927,049.50
  5. Step 5: Solve for x
    x = 3,984,244,249,927,049.50/72,732,191.45
  6. Step 6: Final answer
    x = 54,779,653.56

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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.