Home / 72,384,966.42-99,891,963.45-39,345,195.17

Finding the Fourth Proportional to 72,384,966.42, 99,891,963.45 and 39,345,195.17

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Solution

The fourth proportional to 72,384,966.42, 99,891,963.45 and 39,345,195.17 is: 54,296,755.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,384,966.42 : 99,891,963.45 = 39,345,195.17 : x
  2. Step 2: Convert to fraction form
    72,384,966.42/99,891,963.45 = 39,345,195.17/x
  3. Step 3: Cross multiply
    72,384,966.42x = 99,891,963.45 × 39,345,195.17
  4. Step 4: Simplify right side
    72,384,966.42x = 3,930,268,797,355,296.50
  5. Step 5: Solve for x
    x = 3,930,268,797,355,296.50/72,384,966.42
  6. Step 6: Final answer
    x = 54,296,755.14

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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.