Home / 20,578,640.40-30,846,965.40-12,054,589.20

Finding the Fourth Proportional to 20,578,640.40, 30,846,965.40 and 12,054,589.20

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Solution

The fourth proportional to 20,578,640.40, 30,846,965.40 and 12,054,589.20 is: 18,069,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578,640.40 : 30,846,965.40 = 12,054,589.20 : x
  2. Step 2: Convert to fraction form
    20,578,640.40/30,846,965.40 = 12,054,589.20/x
  3. Step 3: Cross multiply
    20,578,640.40x = 30,846,965.40 × 12,054,589.20
  4. Step 4: Simplify right side
    20,578,640.40x = 371,847,495,963,613.62
  5. Step 5: Solve for x
    x = 371,847,495,963,613.62/20,578,640.40
  6. Step 6: Final answer
    x = 18,069,585.20

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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.