Home / 143,856,425.20-215,784,637.80-82,382,479.60

Finding the Fourth Proportional to 143,856,425.20, 215,784,637.80 and 82,382,479.60

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Solution

The fourth proportional to 143,856,425.20, 215,784,637.80 and 82,382,479.60 is: 123,573,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,425.20 : 215,784,637.80 = 82,382,479.60 : x
  2. Step 2: Convert to fraction form
    143,856,425.20/215,784,637.80 = 82,382,479.60/x
  3. Step 3: Cross multiply
    143,856,425.20x = 215,784,637.80 × 82,382,479.60
  4. Step 4: Simplify right side
    143,856,425.20x = 17,776,873,521,551,888
  5. Step 5: Solve for x
    x = 17,776,873,521,551,888/143,856,425.20
  6. Step 6: Final answer
    x = 123,573,719.40

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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.