Home / 80,812,221.68-121,192,791.32-28,995,666.23

Finding the Fourth Proportional to 80,812,221.68, 121,192,791.32 and 28,995,666.23

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Solution

The fourth proportional to 80,812,221.68, 121,192,791.32 and 28,995,666.23 is: 43,484,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,812,221.68 : 121,192,791.32 = 28,995,666.23 : x
  2. Step 2: Convert to fraction form
    80,812,221.68/121,192,791.32 = 28,995,666.23/x
  3. Step 3: Cross multiply
    80,812,221.68x = 121,192,791.32 × 28,995,666.23
  4. Step 4: Simplify right side
    80,812,221.68x = 3,514,065,725,845,819
  5. Step 5: Solve for x
    x = 3,514,065,725,845,819/80,812,221.68
  6. Step 6: Final answer
    x = 43,484,335.08

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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.