Home / 42,791,279.13-64,217,565.09-18,216,435.29

Finding the Fourth Proportional to 42,791,279.13, 64,217,565.09 and 18,216,435.29

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Solution

The fourth proportional to 42,791,279.13, 64,217,565.09 and 18,216,435.29 is: 27,337,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,791,279.13 : 64,217,565.09 = 18,216,435.29 : x
  2. Step 2: Convert to fraction form
    42,791,279.13/64,217,565.09 = 18,216,435.29/x
  3. Step 3: Cross multiply
    42,791,279.13x = 64,217,565.09 × 18,216,435.29
  4. Step 4: Simplify right side
    42,791,279.13x = 1,169,815,118,622,260.25
  5. Step 5: Solve for x
    x = 1,169,815,118,622,260.25/42,791,279.13
  6. Step 6: Final answer
    x = 27,337,699.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.