Home / 10,309,300.80-15,432,458.40-8,041,819.20

Finding the Fourth Proportional to 10,309,300.80, 15,432,458.40 and 8,041,819.20

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Solution

The fourth proportional to 10,309,300.80, 15,432,458.40 and 8,041,819.20 is: 12,038,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309,300.80 : 15,432,458.40 = 8,041,819.20 : x
  2. Step 2: Convert to fraction form
    10,309,300.80/15,432,458.40 = 8,041,819.20/x
  3. Step 3: Cross multiply
    10,309,300.80x = 15,432,458.40 × 8,041,819.20
  4. Step 4: Simplify right side
    10,309,300.80x = 124,105,040,264,321.28
  5. Step 5: Solve for x
    x = 124,105,040,264,321.28/10,309,300.80
  6. Step 6: Final answer
    x = 12,038,162.69

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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.