Home / 129,988,311.79-194,982,455.85-57,205,092.46

Finding the Fourth Proportional to 129,988,311.79, 194,982,455.85 and 57,205,092.46

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Solution

The fourth proportional to 129,988,311.79, 194,982,455.85 and 57,205,092.46 is: 85,807,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,988,311.79 : 194,982,455.85 = 57,205,092.46 : x
  2. Step 2: Convert to fraction form
    129,988,311.79/194,982,455.85 = 57,205,092.46/x
  3. Step 3: Cross multiply
    129,988,311.79x = 194,982,455.85 × 57,205,092.46
  4. Step 4: Simplify right side
    129,988,311.79x = 11,153,989,414,977,118
  5. Step 5: Solve for x
    x = 11,153,989,414,977,118/129,988,311.79
  6. Step 6: Final answer
    x = 85,807,633.48

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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.