Home / 143,315,926.71-214,700,020.20-120,121,143.23

Finding the Fourth Proportional to 143,315,926.71, 214,700,020.20 and 120,121,143.23

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Solution

The fourth proportional to 143,315,926.71, 214,700,020.20 and 120,121,143.23 is: 179,952,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,315,926.71 : 214,700,020.20 = 120,121,143.23 : x
  2. Step 2: Convert to fraction form
    143,315,926.71/214,700,020.20 = 120,121,143.23/x
  3. Step 3: Cross multiply
    143,315,926.71x = 214,700,020.20 × 120,121,143.23
  4. Step 4: Simplify right side
    143,315,926.71x = 25,790,011,876,854,592
  5. Step 5: Solve for x
    x = 25,790,011,876,854,592/143,315,926.71
  6. Step 6: Final answer
    x = 179,952,169.09

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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.