Home / 314,930,638.20-472,395,957.30-142,413,079.80

Finding the Fourth Proportional to 314,930,638.20, 472,395,957.30 and 142,413,079.80

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Solution

The fourth proportional to 314,930,638.20, 472,395,957.30 and 142,413,079.80 is: 213,619,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,930,638.20 : 472,395,957.30 = 142,413,079.80 : x
  2. Step 2: Convert to fraction form
    314,930,638.20/472,395,957.30 = 142,413,079.80/x
  3. Step 3: Cross multiply
    314,930,638.20x = 472,395,957.30 × 142,413,079.80
  4. Step 4: Simplify right side
    314,930,638.20x = 67,275,363,164,162,296
  5. Step 5: Solve for x
    x = 67,275,363,164,162,296/314,930,638.20
  6. Step 6: Final answer
    x = 213,619,619.70

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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.