Home / 12,407,621.90-18,611,439.34-3,888,621.86

Finding the Fourth Proportional to 12,407,621.90, 18,611,439.34 and 3,888,621.86

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Solution

The fourth proportional to 12,407,621.90, 18,611,439.34 and 3,888,621.86 is: 5,832,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407,621.90 : 18,611,439.34 = 3,888,621.86 : x
  2. Step 2: Convert to fraction form
    12,407,621.90/18,611,439.34 = 3,888,621.86/x
  3. Step 3: Cross multiply
    12,407,621.90x = 18,611,439.34 × 3,888,621.86
  4. Step 4: Simplify right side
    12,407,621.90x = 72,372,849,863,587.97
  5. Step 5: Solve for x
    x = 72,372,849,863,587.97/12,407,621.90
  6. Step 6: Final answer
    x = 5,832,934.82

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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.