Home / 108,359,864.40-162,805,217.40-81,486,008.40

Finding the Fourth Proportional to 108,359,864.40, 162,805,217.40 and 81,486,008.40

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Solution

The fourth proportional to 108,359,864.40, 162,805,217.40 and 81,486,008.40 is: 122,428,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,359,864.40 : 162,805,217.40 = 81,486,008.40 : x
  2. Step 2: Convert to fraction form
    108,359,864.40/162,805,217.40 = 81,486,008.40/x
  3. Step 3: Cross multiply
    108,359,864.40x = 162,805,217.40 × 81,486,008.40
  4. Step 4: Simplify right side
    108,359,864.40x = 13,266,347,312,620,228
  5. Step 5: Solve for x
    x = 13,266,347,312,620,228/108,359,864.40
  6. Step 6: Final answer
    x = 122,428,607.55

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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.