Home / 39,988,931.08-55,184,711.45-21,654,216.58

Finding the Fourth Proportional to 39,988,931.08, 55,184,711.45 and 21,654,216.58

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Solution

The fourth proportional to 39,988,931.08, 55,184,711.45 and 21,654,216.58 is: 29,882,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988,931.08 : 55,184,711.45 = 21,654,216.58 : x
  2. Step 2: Convert to fraction form
    39,988,931.08/55,184,711.45 = 21,654,216.58/x
  3. Step 3: Cross multiply
    39,988,931.08x = 55,184,711.45 × 21,654,216.58
  4. Step 4: Simplify right side
    39,988,931.08x = 1,194,981,693,643,105.75
  5. Step 5: Solve for x
    x = 1,194,981,693,643,105.75/39,988,931.08
  6. Step 6: Final answer
    x = 29,882,811.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.