Home / 20,995,581.08-28,974,516-12,292,939.46

Finding the Fourth Proportional to 20,995,581.08, 28,974,516 and 12,292,939.46

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Solution

The fourth proportional to 20,995,581.08, 28,974,516 and 12,292,939.46 is: 16,964,616.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995,581.08 : 28,974,516 = 12,292,939.46 : x
  2. Step 2: Convert to fraction form
    20,995,581.08/28,974,516 = 12,292,939.46/x
  3. Step 3: Cross multiply
    20,995,581.08x = 28,974,516 × 12,292,939.46
  4. Step 4: Simplify right side
    20,995,581.08x = 356,181,971,070,801.38
  5. Step 5: Solve for x
    x = 356,181,971,070,801.38/20,995,581.08
  6. Step 6: Final answer
    x = 16,964,616.02

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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.