Home / 124,612,891.20-186,919,336.80-42,720,785.55

Finding the Fourth Proportional to 124,612,891.20, 186,919,336.80 and 42,720,785.55

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Solution

The fourth proportional to 124,612,891.20, 186,919,336.80 and 42,720,785.55 is: 64,081,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,612,891.20 : 186,919,336.80 = 42,720,785.55 : x
  2. Step 2: Convert to fraction form
    124,612,891.20/186,919,336.80 = 42,720,785.55/x
  3. Step 3: Cross multiply
    124,612,891.20x = 186,919,336.80 × 42,720,785.55
  4. Step 4: Simplify right side
    124,612,891.20x = 7,985,340,902,581,023
  5. Step 5: Solve for x
    x = 7,985,340,902,581,023/124,612,891.20
  6. Step 6: Final answer
    x = 64,081,178.33

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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.