Home / 28,420,669.50-42,614,685.66-11,128,624.38

Finding the Fourth Proportional to 28,420,669.50, 42,614,685.66 and 11,128,624.38

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Solution

The fourth proportional to 28,420,669.50, 42,614,685.66 and 11,128,624.38 is: 16,686,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,669.50 : 42,614,685.66 = 11,128,624.38 : x
  2. Step 2: Convert to fraction form
    28,420,669.50/42,614,685.66 = 11,128,624.38/x
  3. Step 3: Cross multiply
    28,420,669.50x = 42,614,685.66 × 11,128,624.38
  4. Step 4: Simplify right side
    28,420,669.50x = 474,242,829,781,912.38
  5. Step 5: Solve for x
    x = 474,242,829,781,912.38/28,420,669.50
  6. Step 6: Final answer
    x = 16,686,546.73

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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.