Home / 12,785,916.38-17,648,769.50-10,177,205.66

Finding the Fourth Proportional to 12,785,916.38, 17,648,769.50 and 10,177,205.66

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Solution

The fourth proportional to 12,785,916.38, 17,648,769.50 and 10,177,205.66 is: 14,047,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,916.38 : 17,648,769.50 = 10,177,205.66 : x
  2. Step 2: Convert to fraction form
    12,785,916.38/17,648,769.50 = 10,177,205.66/x
  3. Step 3: Cross multiply
    12,785,916.38x = 17,648,769.50 × 10,177,205.66
  4. Step 4: Simplify right side
    12,785,916.38x = 179,615,156,847,435.38
  5. Step 5: Solve for x
    x = 179,615,156,847,435.38/12,785,916.38
  6. Step 6: Final answer
    x = 14,047,890.78

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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.