Home / 20,218,977.60-30,328,466.40-12,566,227.20

Finding the Fourth Proportional to 20,218,977.60, 30,328,466.40 and 12,566,227.20

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Solution

The fourth proportional to 20,218,977.60, 30,328,466.40 and 12,566,227.20 is: 18,849,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218,977.60 : 30,328,466.40 = 12,566,227.20 : x
  2. Step 2: Convert to fraction form
    20,218,977.60/30,328,466.40 = 12,566,227.20/x
  3. Step 3: Cross multiply
    20,218,977.60x = 30,328,466.40 × 12,566,227.20
  4. Step 4: Simplify right side
    20,218,977.60x = 381,114,399,409,966.06
  5. Step 5: Solve for x
    x = 381,114,399,409,966.06/20,218,977.60
  6. Step 6: Final answer
    x = 18,849,340.80

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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.