Home / 72,023,997-99,393,120.72-39,428,949

Finding the Fourth Proportional to 72,023,997, 99,393,120.72 and 39,428,949

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Solution

The fourth proportional to 72,023,997, 99,393,120.72 and 39,428,949 is: 54,411,952.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,023,997 : 99,393,120.72 = 39,428,949 : x
  2. Step 2: Convert to fraction form
    72,023,997/99,393,120.72 = 39,428,949/x
  3. Step 3: Cross multiply
    72,023,997x = 99,393,120.72 × 39,428,949
  4. Step 4: Simplify right side
    72,023,997x = 3,918,966,287,819,723
  5. Step 5: Solve for x
    x = 3,918,966,287,819,723/72,023,997
  6. Step 6: Final answer
    x = 54,411,952.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.