Home / 14,666,178.46-20,239,021.83-8,139,428.86

Finding the Fourth Proportional to 14,666,178.46, 20,239,021.83 and 8,139,428.86

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Solution

The fourth proportional to 14,666,178.46, 20,239,021.83 and 8,139,428.86 is: 11,232,242.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666,178.46 : 20,239,021.83 = 8,139,428.86 : x
  2. Step 2: Convert to fraction form
    14,666,178.46/20,239,021.83 = 8,139,428.86/x
  3. Step 3: Cross multiply
    14,666,178.46x = 20,239,021.83 × 8,139,428.86
  4. Step 4: Simplify right side
    14,666,178.46x = 164,734,078,381,272
  5. Step 5: Solve for x
    x = 164,734,078,381,272/14,666,178.46
  6. Step 6: Final answer
    x = 11,232,242.87

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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.