Home / 108,359,854.40-162,805,202.40-81,485,998.40

Finding the Fourth Proportional to 108,359,854.40, 162,805,202.40 and 81,485,998.40

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Solution

The fourth proportional to 108,359,854.40, 162,805,202.40 and 81,485,998.40 is: 122,428,592.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,359,854.40 : 162,805,202.40 = 81,485,998.40 : x
  2. Step 2: Convert to fraction form
    108,359,854.40/162,805,202.40 = 81,485,998.40/x
  3. Step 3: Cross multiply
    108,359,854.40x = 162,805,202.40 × 81,485,998.40
  4. Step 4: Simplify right side
    108,359,854.40x = 13,266,344,462,278,078
  5. Step 5: Solve for x
    x = 13,266,344,462,278,078/108,359,854.40
  6. Step 6: Final answer
    x = 122,428,592.54

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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.