Home / 15,690,423.47-21,655,354.25-13,072,775.83

Finding the Fourth Proportional to 15,690,423.47, 21,655,354.25 and 13,072,775.83

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Solution

The fourth proportional to 15,690,423.47, 21,655,354.25 and 13,072,775.83 is: 18,042,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690,423.47 : 21,655,354.25 = 13,072,775.83 : x
  2. Step 2: Convert to fraction form
    15,690,423.47/21,655,354.25 = 13,072,775.83/x
  3. Step 3: Cross multiply
    15,690,423.47x = 21,655,354.25 × 13,072,775.83
  4. Step 4: Simplify right side
    15,690,423.47x = 283,095,591,608,031.38
  5. Step 5: Solve for x
    x = 283,095,591,608,031.38/15,690,423.47
  6. Step 6: Final answer
    x = 18,042,571.78

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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.