Home / 20,451,220.56-28,232,911.44-12,718,753.92

Finding the Fourth Proportional to 20,451,220.56, 28,232,911.44 and 12,718,753.92

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Solution

The fourth proportional to 20,451,220.56, 28,232,911.44 and 12,718,753.92 is: 17,558,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,220.56 : 28,232,911.44 = 12,718,753.92 : x
  2. Step 2: Convert to fraction form
    20,451,220.56/28,232,911.44 = 12,718,753.92/x
  3. Step 3: Cross multiply
    20,451,220.56x = 28,232,911.44 × 12,718,753.92
  4. Step 4: Simplify right side
    20,451,220.56x = 359,087,453,050,512.88
  5. Step 5: Solve for x
    x = 359,087,453,050,512.88/20,451,220.56
  6. Step 6: Final answer
    x = 17,558,240.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.