Home / 15,036,819.40-20,750,829.78-8,161,301.80

Finding the Fourth Proportional to 15,036,819.40, 20,750,829.78 and 8,161,301.80

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Solution

The fourth proportional to 15,036,819.40, 20,750,829.78 and 8,161,301.80 is: 11,262,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036,819.40 : 20,750,829.78 = 8,161,301.80 : x
  2. Step 2: Convert to fraction form
    15,036,819.40/20,750,829.78 = 8,161,301.80/x
  3. Step 3: Cross multiply
    15,036,819.40x = 20,750,829.78 × 8,161,301.80
  4. Step 4: Simplify right side
    15,036,819.40x = 169,353,784,435,007.62
  5. Step 5: Solve for x
    x = 169,353,784,435,007.62/15,036,819.40
  6. Step 6: Final answer
    x = 11,262,606.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.