Home / 20,864,401.30-31,274,513.12-7,018,178.75

Finding the Fourth Proportional to 20,864,401.30, 31,274,513.12 and 7,018,178.75

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Solution

The fourth proportional to 20,864,401.30, 31,274,513.12 and 7,018,178.75 is: 10,519,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,401.30 : 31,274,513.12 = 7,018,178.75 : x
  2. Step 2: Convert to fraction form
    20,864,401.30/31,274,513.12 = 7,018,178.75/x
  3. Step 3: Cross multiply
    20,864,401.30x = 31,274,513.12 × 7,018,178.75
  4. Step 4: Simplify right side
    20,864,401.30x = 219,490,123,395,380.22
  5. Step 5: Solve for x
    x = 219,490,123,395,380.22/20,864,401.30
  6. Step 6: Final answer
    x = 10,519,838.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.