Home / 18,419,769.72-25,411,440.48-13,516,471.98

Finding the Fourth Proportional to 18,419,769.72, 25,411,440.48 and 13,516,471.98

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Solution

The fourth proportional to 18,419,769.72, 25,411,440.48 and 13,516,471.98 is: 18,646,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419,769.72 : 25,411,440.48 = 13,516,471.98 : x
  2. Step 2: Convert to fraction form
    18,419,769.72/25,411,440.48 = 13,516,471.98/x
  3. Step 3: Cross multiply
    18,419,769.72x = 25,411,440.48 × 13,516,471.98
  4. Step 4: Simplify right side
    18,419,769.72x = 343,473,023,219,357.75
  5. Step 5: Solve for x
    x = 343,473,023,219,357.75/18,419,769.72
  6. Step 6: Final answer
    x = 18,646,977.05

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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.