Home / 258,891,726.30-388,337,589.45-67,415,502.30

Finding the Fourth Proportional to 258,891,726.30, 388,337,589.45 and 67,415,502.30

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Solution

The fourth proportional to 258,891,726.30, 388,337,589.45 and 67,415,502.30 is: 101,123,253.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,891,726.30 : 388,337,589.45 = 67,415,502.30 : x
  2. Step 2: Convert to fraction form
    258,891,726.30/388,337,589.45 = 67,415,502.30/x
  3. Step 3: Cross multiply
    258,891,726.30x = 388,337,589.45 × 67,415,502.30
  4. Step 4: Simplify right side
    258,891,726.30x = 26,179,973,654,742,928
  5. Step 5: Solve for x
    x = 26,179,973,654,742,928/258,891,726.30
  6. Step 6: Final answer
    x = 101,123,253.45

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Double scale
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Similar ratio
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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.