Home / 12,471,967.20-18,707,950.80-8,362,156.80

Finding the Fourth Proportional to 12,471,967.20, 18,707,950.80 and 8,362,156.80

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Solution

The fourth proportional to 12,471,967.20, 18,707,950.80 and 8,362,156.80 is: 12,543,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471,967.20 : 18,707,950.80 = 8,362,156.80 : x
  2. Step 2: Convert to fraction form
    12,471,967.20/18,707,950.80 = 8,362,156.80/x
  3. Step 3: Cross multiply
    12,471,967.20x = 18,707,950.80 × 8,362,156.80
  4. Step 4: Simplify right side
    12,471,967.20x = 156,438,817,996,285.44
  5. Step 5: Solve for x
    x = 156,438,817,996,285.44/12,471,967.20
  6. Step 6: Final answer
    x = 12,543,235.20

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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.