Home / 72,253,034.47-99,709,932.72-39,213,568.94

Finding the Fourth Proportional to 72,253,034.47, 99,709,932.72 and 39,213,568.94

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Solution

The fourth proportional to 72,253,034.47, 99,709,932.72 and 39,213,568.94 is: 54,115,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,253,034.47 : 99,709,932.72 = 39,213,568.94 : x
  2. Step 2: Convert to fraction form
    72,253,034.47/99,709,932.72 = 39,213,568.94/x
  3. Step 3: Cross multiply
    72,253,034.47x = 99,709,932.72 × 39,213,568.94
  4. Step 4: Simplify right side
    72,253,034.47x = 3,909,982,320,366,983
  5. Step 5: Solve for x
    x = 3,909,982,320,366,983/72,253,034.47
  6. Step 6: Final answer
    x = 54,115,129.54

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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.