Home / 10,780,938.10-16,171,407.15-9,899,139.70

Finding the Fourth Proportional to 10,780,938.10, 16,171,407.15 and 9,899,139.70

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Solution

The fourth proportional to 10,780,938.10, 16,171,407.15 and 9,899,139.70 is: 14,848,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,938.10 : 16,171,407.15 = 9,899,139.70 : x
  2. Step 2: Convert to fraction form
    10,780,938.10/16,171,407.15 = 9,899,139.70/x
  3. Step 3: Cross multiply
    10,780,938.10x = 16,171,407.15 × 9,899,139.70
  4. Step 4: Simplify right side
    10,780,938.10x = 160,083,018,523,428.84
  5. Step 5: Solve for x
    x = 160,083,018,523,428.84/10,780,938.10
  6. Step 6: Final answer
    x = 14,848,709.55

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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.