Home / 13,452,139.20-20,178,208.80-9,342,328.80

Finding the Fourth Proportional to 13,452,139.20, 20,178,208.80 and 9,342,328.80

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Solution

The fourth proportional to 13,452,139.20, 20,178,208.80 and 9,342,328.80 is: 14,013,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452,139.20 : 20,178,208.80 = 9,342,328.80 : x
  2. Step 2: Convert to fraction form
    13,452,139.20/20,178,208.80 = 9,342,328.80/x
  3. Step 3: Cross multiply
    13,452,139.20x = 20,178,208.80 × 9,342,328.80
  4. Step 4: Simplify right side
    13,452,139.20x = 188,511,461,204,653.47
  5. Step 5: Solve for x
    x = 188,511,461,204,653.47/13,452,139.20
  6. Step 6: Final answer
    x = 14,013,493.20

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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.