Home / 10,921,123.20-16,381,684.80-2,942,947.20

Finding the Fourth Proportional to 10,921,123.20, 16,381,684.80 and 2,942,947.20

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Solution

The fourth proportional to 10,921,123.20, 16,381,684.80 and 2,942,947.20 is: 4,414,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,123.20 : 16,381,684.80 = 2,942,947.20 : x
  2. Step 2: Convert to fraction form
    10,921,123.20/16,381,684.80 = 2,942,947.20/x
  3. Step 3: Cross multiply
    10,921,123.20x = 16,381,684.80 × 2,942,947.20
  4. Step 4: Simplify right side
    10,921,123.20x = 48,210,433,413,442.56
  5. Step 5: Solve for x
    x = 48,210,433,413,442.56/10,921,123.20
  6. Step 6: Final answer
    x = 4,414,420.80

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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.