Home / 14,330,489.28-19,775,178.72-7,891,961.28

Finding the Fourth Proportional to 14,330,489.28, 19,775,178.72 and 7,891,961.28

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Solution

The fourth proportional to 14,330,489.28, 19,775,178.72 and 7,891,961.28 is: 10,890,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,330,489.28 : 19,775,178.72 = 7,891,961.28 : x
  2. Step 2: Convert to fraction form
    14,330,489.28/19,775,178.72 = 7,891,961.28/x
  3. Step 3: Cross multiply
    14,330,489.28x = 19,775,178.72 × 7,891,961.28
  4. Step 4: Simplify right side
    14,330,489.28x = 156,064,944,763,319.97
  5. Step 5: Solve for x
    x = 156,064,944,763,319.97/14,330,489.28
  6. Step 6: Final answer
    x = 10,890,412.86

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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.