Home / 123,398,853.57-170,287,983.12-67,644,394.11

Finding the Fourth Proportional to 123,398,853.57, 170,287,983.12 and 67,644,394.11

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Solution

The fourth proportional to 123,398,853.57, 170,287,983.12 and 67,644,394.11 is: 93,347,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,398,853.57 : 170,287,983.12 = 67,644,394.11 : x
  2. Step 2: Convert to fraction form
    123,398,853.57/170,287,983.12 = 67,644,394.11/x
  3. Step 3: Cross multiply
    123,398,853.57x = 170,287,983.12 × 67,644,394.11
  4. Step 4: Simplify right side
    123,398,853.57x = 11,519,027,442,366,308
  5. Step 5: Solve for x
    x = 11,519,027,442,366,308/123,398,853.57
  6. Step 6: Final answer
    x = 93,347,929.17

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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.