Home / 18,381,875.85-25,365,983.88-10,120,369.26

Finding the Fourth Proportional to 18,381,875.85, 25,365,983.88 and 10,120,369.26

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Solution

The fourth proportional to 18,381,875.85, 25,365,983.88 and 10,120,369.26 is: 13,965,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,875.85 : 25,365,983.88 = 10,120,369.26 : x
  2. Step 2: Convert to fraction form
    18,381,875.85/25,365,983.88 = 10,120,369.26/x
  3. Step 3: Cross multiply
    18,381,875.85x = 25,365,983.88 × 10,120,369.26
  4. Step 4: Simplify right side
    18,381,875.85x = 256,713,123,508,807.50
  5. Step 5: Solve for x
    x = 256,713,123,508,807.50/18,381,875.85
  6. Step 6: Final answer
    x = 13,965,556.38

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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.