Home / 7,219,375.20-10,829,062.80-6,407,560.80

Finding the Fourth Proportional to 7,219,375.20, 10,829,062.80 and 6,407,560.80

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Solution

The fourth proportional to 7,219,375.20, 10,829,062.80 and 6,407,560.80 is: 9,611,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219,375.20 : 10,829,062.80 = 6,407,560.80 : x
  2. Step 2: Convert to fraction form
    7,219,375.20/10,829,062.80 = 6,407,560.80/x
  3. Step 3: Cross multiply
    7,219,375.20x = 10,829,062.80 × 6,407,560.80
  4. Step 4: Simplify right side
    7,219,375.20x = 69,387,878,298,018.24
  5. Step 5: Solve for x
    x = 69,387,878,298,018.24/7,219,375.20
  6. Step 6: Final answer
    x = 9,611,341.20

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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.