Home / 143,472,045.20-215,208,067.80-132,386,579.60

Finding the Fourth Proportional to 143,472,045.20, 215,208,067.80 and 132,386,579.60

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Solution

The fourth proportional to 143,472,045.20, 215,208,067.80 and 132,386,579.60 is: 198,579,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,472,045.20 : 215,208,067.80 = 132,386,579.60 : x
  2. Step 2: Convert to fraction form
    143,472,045.20/215,208,067.80 = 132,386,579.60/x
  3. Step 3: Cross multiply
    143,472,045.20x = 215,208,067.80 × 132,386,579.60
  4. Step 4: Simplify right side
    143,472,045.20x = 28,490,659,998,366,896
  5. Step 5: Solve for x
    x = 28,490,659,998,366,896/143,472,045.20
  6. Step 6: Final answer
    x = 198,579,869.40

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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.