Home / 21,317,350.80-31,969,027.80-7,852,429.20

Finding the Fourth Proportional to 21,317,350.80, 31,969,027.80 and 7,852,429.20

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Solution

The fourth proportional to 21,317,350.80, 31,969,027.80 and 7,852,429.20 is: 11,776,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317,350.80 : 31,969,027.80 = 7,852,429.20 : x
  2. Step 2: Convert to fraction form
    21,317,350.80/31,969,027.80 = 7,852,429.20/x
  3. Step 3: Cross multiply
    21,317,350.80x = 31,969,027.80 × 7,852,429.20
  4. Step 4: Simplify right side
    21,317,350.80x = 251,034,527,392,331.78
  5. Step 5: Solve for x
    x = 251,034,527,392,331.78/21,317,350.80
  6. Step 6: Final answer
    x = 11,776,065.88

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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.