Home / 14,435,769.10-19,921,857.24-7,909,378.78

Finding the Fourth Proportional to 14,435,769.10, 19,921,857.24 and 7,909,378.78

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Solution

The fourth proportional to 14,435,769.10, 19,921,857.24 and 7,909,378.78 is: 10,915,214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435,769.10 : 19,921,857.24 = 7,909,378.78 : x
  2. Step 2: Convert to fraction form
    14,435,769.10/19,921,857.24 = 7,909,378.78/x
  3. Step 3: Cross multiply
    14,435,769.10x = 19,921,857.24 × 7,909,378.78
  4. Step 4: Simplify right side
    14,435,769.10x = 157,569,514,912,245.38
  5. Step 5: Solve for x
    x = 157,569,514,912,245.38/14,435,769.10
  6. Step 6: Final answer
    x = 10,915,214.41

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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.