Home / 54,128,433.90-81,215,978.85-31,428,734.70

Finding the Fourth Proportional to 54,128,433.90, 81,215,978.85 and 31,428,734.70

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Solution

The fourth proportional to 54,128,433.90, 81,215,978.85 and 31,428,734.70 is: 47,156,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,433.90 : 81,215,978.85 = 31,428,734.70 : x
  2. Step 2: Convert to fraction form
    54,128,433.90/81,215,978.85 = 31,428,734.70/x
  3. Step 3: Cross multiply
    54,128,433.90x = 81,215,978.85 × 31,428,734.70
  4. Step 4: Simplify right side
    54,128,433.90x = 2,552,515,452,677,461
  5. Step 5: Solve for x
    x = 2,552,515,452,677,461/54,128,433.90
  6. Step 6: Final answer
    x = 47,156,647.05

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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.