Home / 20,757,709.04-31,139,535.09-6,381,983.88

Finding the Fourth Proportional to 20,757,709.04, 31,139,535.09 and 6,381,983.88

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Solution

The fourth proportional to 20,757,709.04, 31,139,535.09 and 6,381,983.88 is: 9,573,889.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,709.04 : 31,139,535.09 = 6,381,983.88 : x
  2. Step 2: Convert to fraction form
    20,757,709.04/31,139,535.09 = 6,381,983.88/x
  3. Step 3: Cross multiply
    20,757,709.04x = 31,139,535.09 × 6,381,983.88
  4. Step 4: Simplify right side
    20,757,709.04x = 198,732,010,975,074.34
  5. Step 5: Solve for x
    x = 198,732,010,975,074.34/20,757,709.04
  6. Step 6: Final answer
    x = 9,573,889.42

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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.