Home / 84,001,853.10-126,002,779.65-61,043,601.90

Finding the Fourth Proportional to 84,001,853.10, 126,002,779.65 and 61,043,601.90

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Solution

The fourth proportional to 84,001,853.10, 126,002,779.65 and 61,043,601.90 is: 91,565,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,001,853.10 : 126,002,779.65 = 61,043,601.90 : x
  2. Step 2: Convert to fraction form
    84,001,853.10/126,002,779.65 = 61,043,601.90/x
  3. Step 3: Cross multiply
    84,001,853.10x = 126,002,779.65 × 61,043,601.90
  4. Step 4: Simplify right side
    84,001,853.10x = 7,691,663,519,248,022
  5. Step 5: Solve for x
    x = 7,691,663,519,248,022/84,001,853.10
  6. Step 6: Final answer
    x = 91,565,402.85

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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.