Home / 31,856,769.78-47,771,868.24-9,991,515.60

Finding the Fourth Proportional to 31,856,769.78, 47,771,868.24 and 9,991,515.60

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Solution

The fourth proportional to 31,856,769.78, 47,771,868.24 and 9,991,515.60 is: 14,983,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856,769.78 : 47,771,868.24 = 9,991,515.60 : x
  2. Step 2: Convert to fraction form
    31,856,769.78/47,771,868.24 = 9,991,515.60/x
  3. Step 3: Cross multiply
    31,856,769.78x = 47,771,868.24 × 9,991,515.60
  4. Step 4: Simplify right side
    31,856,769.78x = 477,313,366,761,104.56
  5. Step 5: Solve for x
    x = 477,313,366,761,104.56/31,856,769.78
  6. Step 6: Final answer
    x = 14,983,106.26

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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.