Home / 143,472,015.20-215,208,022.80-132,386,549.60

Finding the Fourth Proportional to 143,472,015.20, 215,208,022.80 and 132,386,549.60

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Solution

The fourth proportional to 143,472,015.20, 215,208,022.80 and 132,386,549.60 is: 198,579,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,472,015.20 : 215,208,022.80 = 132,386,549.60 : x
  2. Step 2: Convert to fraction form
    143,472,015.20/215,208,022.80 = 132,386,549.60/x
  3. Step 3: Cross multiply
    143,472,015.20x = 215,208,022.80 × 132,386,549.60
  4. Step 4: Simplify right side
    143,472,015.20x = 28,490,647,584,730,132
  5. Step 5: Solve for x
    x = 28,490,647,584,730,132/143,472,015.20
  6. Step 6: Final answer
    x = 198,579,824.40

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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.