Home / 426,676,162.52-640,009,578.18-103,560,034.52

Finding the Fourth Proportional to 426,676,162.52, 640,009,578.18 and 103,560,034.52

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Solution

The fourth proportional to 426,676,162.52, 640,009,578.18 and 103,560,034.52 is: 155,338,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,676,162.52 : 640,009,578.18 = 103,560,034.52 : x
  2. Step 2: Convert to fraction form
    426,676,162.52/640,009,578.18 = 103,560,034.52/x
  3. Step 3: Cross multiply
    426,676,162.52x = 640,009,578.18 × 103,560,034.52
  4. Step 4: Simplify right side
    426,676,162.52x = 66,279,414,009,451,432
  5. Step 5: Solve for x
    x = 66,279,414,009,451,432/426,676,162.52
  6. Step 6: Final answer
    x = 155,338,919.38

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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.