Home / 6,479,419.20-9,719,128.80-5,219,707.20

Finding the Fourth Proportional to 6,479,419.20, 9,719,128.80 and 5,219,707.20

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Solution

The fourth proportional to 6,479,419.20, 9,719,128.80 and 5,219,707.20 is: 7,829,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479,419.20 : 9,719,128.80 = 5,219,707.20 : x
  2. Step 2: Convert to fraction form
    6,479,419.20/9,719,128.80 = 5,219,707.20/x
  3. Step 3: Cross multiply
    6,479,419.20x = 9,719,128.80 × 5,219,707.20
  4. Step 4: Simplify right side
    6,479,419.20x = 50,731,006,575,087.37
  5. Step 5: Solve for x
    x = 50,731,006,575,087.37/6,479,419.20
  6. Step 6: Final answer
    x = 7,829,560.80

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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.