Home / 20,956,033.28-31,434,058.42-9,428,037.96

Finding the Fourth Proportional to 20,956,033.28, 31,434,058.42 and 9,428,037.96

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Solution

The fourth proportional to 20,956,033.28, 31,434,058.42 and 9,428,037.96 is: 14,142,060.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,033.28 : 31,434,058.42 = 9,428,037.96 : x
  2. Step 2: Convert to fraction form
    20,956,033.28/31,434,058.42 = 9,428,037.96/x
  3. Step 3: Cross multiply
    20,956,033.28x = 31,434,058.42 × 9,428,037.96
  4. Step 4: Simplify right side
    20,956,033.28x = 296,361,496,020,617.69
  5. Step 5: Solve for x
    x = 296,361,496,020,617.69/20,956,033.28
  6. Step 6: Final answer
    x = 14,142,060.76

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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.