Home / 108,520,371.18-162,591,008.85-90,440,748.36

Finding the Fourth Proportional to 108,520,371.18, 162,591,008.85 and 90,440,748.36

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Solution

The fourth proportional to 108,520,371.18, 162,591,008.85 and 90,440,748.36 is: 135,503,153.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,520,371.18 : 162,591,008.85 = 90,440,748.36 : x
  2. Step 2: Convert to fraction form
    108,520,371.18/162,591,008.85 = 90,440,748.36/x
  3. Step 3: Cross multiply
    108,520,371.18x = 162,591,008.85 × 90,440,748.36
  4. Step 4: Simplify right side
    108,520,371.18x = 14,704,852,517,001,382
  5. Step 5: Solve for x
    x = 14,704,852,517,001,382/108,520,371.18
  6. Step 6: Final answer
    x = 135,503,153.53

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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.