Home / 72,509,910.11-99,873,062.14-55,732,566.17

Finding the Fourth Proportional to 72,509,910.11, 99,873,062.14 and 55,732,566.17

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Solution

The fourth proportional to 72,509,910.11, 99,873,062.14 and 55,732,566.17 is: 76,764,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,509,910.11 : 99,873,062.14 = 55,732,566.17 : x
  2. Step 2: Convert to fraction form
    72,509,910.11/99,873,062.14 = 55,732,566.17/x
  3. Step 3: Cross multiply
    72,509,910.11x = 99,873,062.14 × 55,732,566.17
  4. Step 4: Simplify right side
    72,509,910.11x = 5,566,182,043,704,602
  5. Step 5: Solve for x
    x = 5,566,182,043,704,602/72,509,910.11
  6. Step 6: Final answer
    x = 76,764,431.72

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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.