Home / 20,645,078.56-28,487,082.88-11,823,158.08

Finding the Fourth Proportional to 20,645,078.56, 28,487,082.88 and 11,823,158.08

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Solution

The fourth proportional to 20,645,078.56, 28,487,082.88 and 11,823,158.08 is: 16,314,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645,078.56 : 28,487,082.88 = 11,823,158.08 : x
  2. Step 2: Convert to fraction form
    20,645,078.56/28,487,082.88 = 11,823,158.08/x
  3. Step 3: Cross multiply
    20,645,078.56x = 28,487,082.88 × 11,823,158.08
  4. Step 4: Simplify right side
    20,645,078.56x = 336,807,284,128,301.69
  5. Step 5: Solve for x
    x = 336,807,284,128,301.69/20,645,078.56
  6. Step 6: Final answer
    x = 16,314,168.20

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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.