Home / 72,010,251.90-99,374,464.17-38,970,505.80

Finding the Fourth Proportional to 72,010,251.90, 99,374,464.17 and 38,970,505.80

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Solution

The fourth proportional to 72,010,251.90, 99,374,464.17 and 38,970,505.80 is: 53,779,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,010,251.90 : 99,374,464.17 = 38,970,505.80 : x
  2. Step 2: Convert to fraction form
    72,010,251.90/99,374,464.17 = 38,970,505.80/x
  3. Step 3: Cross multiply
    72,010,251.90x = 99,374,464.17 × 38,970,505.80
  4. Step 4: Simplify right side
    72,010,251.90x = 3,872,673,132,308,877
  5. Step 5: Solve for x
    x = 3,872,673,132,308,877/72,010,251.90
  6. Step 6: Final answer
    x = 53,779,469.31

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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.