Home / 215,480,293.20-323,220,439.80-129,386,851.20

Finding the Fourth Proportional to 215,480,293.20, 323,220,439.80 and 129,386,851.20

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Solution

The fourth proportional to 215,480,293.20, 323,220,439.80 and 129,386,851.20 is: 194,080,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,480,293.20 : 323,220,439.80 = 129,386,851.20 : x
  2. Step 2: Convert to fraction form
    215,480,293.20/323,220,439.80 = 129,386,851.20/x
  3. Step 3: Cross multiply
    215,480,293.20x = 323,220,439.80 × 129,386,851.20
  4. Step 4: Simplify right side
    215,480,293.20x = 41,820,474,949,201,160
  5. Step 5: Solve for x
    x = 41,820,474,949,201,160/215,480,293.20
  6. Step 6: Final answer
    x = 194,080,276.80

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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.