Home / 18,477,421.72-25,490,366.48-11,953,155.12

Finding the Fourth Proportional to 18,477,421.72, 25,490,366.48 and 11,953,155.12

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Solution

The fourth proportional to 18,477,421.72, 25,490,366.48 and 11,953,155.12 is: 16,489,871.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477,421.72 : 25,490,366.48 = 11,953,155.12 : x
  2. Step 2: Convert to fraction form
    18,477,421.72/25,490,366.48 = 11,953,155.12/x
  3. Step 3: Cross multiply
    18,477,421.72x = 25,490,366.48 × 11,953,155.12
  4. Step 4: Simplify right side
    18,477,421.72x = 304,690,304,535,382.44
  5. Step 5: Solve for x
    x = 304,690,304,535,382.44/18,477,421.72
  6. Step 6: Final answer
    x = 16,489,871.22

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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.