Home / 81,465,813.40-122,198,720.10-26,886,822.70

Finding the Fourth Proportional to 81,465,813.40, 122,198,720.10 and 26,886,822.70

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Solution

The fourth proportional to 81,465,813.40, 122,198,720.10 and 26,886,822.70 is: 40,330,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,465,813.40 : 122,198,720.10 = 26,886,822.70 : x
  2. Step 2: Convert to fraction form
    81,465,813.40/122,198,720.10 = 26,886,822.70/x
  3. Step 3: Cross multiply
    81,465,813.40x = 122,198,720.10 × 26,886,822.70
  4. Step 4: Simplify right side
    81,465,813.40x = 3,285,535,321,495,626
  5. Step 5: Solve for x
    x = 3,285,535,321,495,626/81,465,813.40
  6. Step 6: Final answer
    x = 40,330,234.05

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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.