Home / 21,260,230.80-31,890,346.20-8,482,707.60

Finding the Fourth Proportional to 21,260,230.80, 31,890,346.20 and 8,482,707.60

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Solution

The fourth proportional to 21,260,230.80, 31,890,346.20 and 8,482,707.60 is: 12,724,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260,230.80 : 31,890,346.20 = 8,482,707.60 : x
  2. Step 2: Convert to fraction form
    21,260,230.80/31,890,346.20 = 8,482,707.60/x
  3. Step 3: Cross multiply
    21,260,230.80x = 31,890,346.20 × 8,482,707.60
  4. Step 4: Simplify right side
    21,260,230.80x = 270,516,482,077,371.09
  5. Step 5: Solve for x
    x = 270,516,482,077,371.09/21,260,230.80
  6. Step 6: Final answer
    x = 12,724,061.40

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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.