Home / 21,280,449.52-31,925,163.84-6,902,400.88

Finding the Fourth Proportional to 21,280,449.52, 31,925,163.84 and 6,902,400.88

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Solution

The fourth proportional to 21,280,449.52, 31,925,163.84 and 6,902,400.88 is: 10,355,057.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,449.52 : 31,925,163.84 = 6,902,400.88 : x
  2. Step 2: Convert to fraction form
    21,280,449.52/31,925,163.84 = 6,902,400.88/x
  3. Step 3: Cross multiply
    21,280,449.52x = 31,925,163.84 × 6,902,400.88
  4. Step 4: Simplify right side
    21,280,449.52x = 220,360,278,983,360.19
  5. Step 5: Solve for x
    x = 220,360,278,983,360.19/21,280,449.52
  6. Step 6: Final answer
    x = 10,355,057.53

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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.