Home / 20,955,078.30-31,432,617.45-18,435,654.30

Finding the Fourth Proportional to 20,955,078.30, 31,432,617.45 and 18,435,654.30

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Solution

The fourth proportional to 20,955,078.30, 31,432,617.45 and 18,435,654.30 is: 27,653,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,955,078.30 : 31,432,617.45 = 18,435,654.30 : x
  2. Step 2: Convert to fraction form
    20,955,078.30/31,432,617.45 = 18,435,654.30/x
  3. Step 3: Cross multiply
    20,955,078.30x = 31,432,617.45 × 18,435,654.30
  4. Step 4: Simplify right side
    20,955,078.30x = 579,480,869,052,347.50
  5. Step 5: Solve for x
    x = 579,480,869,052,347.50/20,955,078.30
  6. Step 6: Final answer
    x = 27,653,481.45

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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.