Home / 427,123,364.06-640,340,265.13-392,647,104.91

Finding the Fourth Proportional to 427,123,364.06, 640,340,265.13 and 392,647,104.91

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Solution

The fourth proportional to 427,123,364.06, 640,340,265.13 and 392,647,104.91 is: 588,653,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,123,364.06 : 640,340,265.13 = 392,647,104.91 : x
  2. Step 2: Convert to fraction form
    427,123,364.06/640,340,265.13 = 392,647,104.91/x
  3. Step 3: Cross multiply
    427,123,364.06x = 640,340,265.13 × 392,647,104.91
  4. Step 4: Simplify right side
    427,123,364.06x = 251,427,751,260,596,352
  5. Step 5: Solve for x
    x = 251,427,751,260,596,352/427,123,364.06
  6. Step 6: Final answer
    x = 588,653,706.20

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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.