Home / 21,366,044.55-29,468,872.17-18,390,811.23

Finding the Fourth Proportional to 21,366,044.55, 29,468,872.17 and 18,390,811.23

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Solution

The fourth proportional to 21,366,044.55, 29,468,872.17 and 18,390,811.23 is: 25,365,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366,044.55 : 29,468,872.17 = 18,390,811.23 : x
  2. Step 2: Convert to fraction form
    21,366,044.55/29,468,872.17 = 18,390,811.23/x
  3. Step 3: Cross multiply
    21,366,044.55x = 29,468,872.17 × 18,390,811.23
  4. Step 4: Simplify right side
    21,366,044.55x = 541,956,465,239,470.50
  5. Step 5: Solve for x
    x = 541,956,465,239,470.50/21,366,044.55
  6. Step 6: Final answer
    x = 25,365,315.70

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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.