Home / 28,115,140.80-42,172,711.20-26,520,817.80

Finding the Fourth Proportional to 28,115,140.80, 42,172,711.20 and 26,520,817.80

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Solution

The fourth proportional to 28,115,140.80, 42,172,711.20 and 26,520,817.80 is: 39,781,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115,140.80 : 42,172,711.20 = 26,520,817.80 : x
  2. Step 2: Convert to fraction form
    28,115,140.80/42,172,711.20 = 26,520,817.80/x
  3. Step 3: Cross multiply
    28,115,140.80x = 42,172,711.20 × 26,520,817.80
  4. Step 4: Simplify right side
    28,115,140.80x = 1,118,454,789,867,219.50
  5. Step 5: Solve for x
    x = 1,118,454,789,867,219.50/28,115,140.80
  6. Step 6: Final answer
    x = 39,781,226.70

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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.