Home / 18,825,229.16-28,249,786.82-8,042,611.12

Finding the Fourth Proportional to 18,825,229.16, 28,249,786.82 and 8,042,611.12

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Solution

The fourth proportional to 18,825,229.16, 28,249,786.82 and 8,042,611.12 is: 12,069,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825,229.16 : 28,249,786.82 = 8,042,611.12 : x
  2. Step 2: Convert to fraction form
    18,825,229.16/28,249,786.82 = 8,042,611.12/x
  3. Step 3: Cross multiply
    18,825,229.16x = 28,249,786.82 × 8,042,611.12
  4. Step 4: Simplify right side
    18,825,229.16x = 227,202,049,434,699.47
  5. Step 5: Solve for x
    x = 227,202,049,434,699.47/18,825,229.16
  6. Step 6: Final answer
    x = 12,069,019.05

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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.