Home / 7,991,128.80-11,982,966.74-4,151,919.10

Finding the Fourth Proportional to 7,991,128.80, 11,982,966.74 and 4,151,919.10

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Solution

The fourth proportional to 7,991,128.80, 11,982,966.74 and 4,151,919.10 is: 6,225,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991,128.80 : 11,982,966.74 = 4,151,919.10 : x
  2. Step 2: Convert to fraction form
    7,991,128.80/11,982,966.74 = 4,151,919.10/x
  3. Step 3: Cross multiply
    7,991,128.80x = 11,982,966.74 × 4,151,919.10
  4. Step 4: Simplify right side
    7,991,128.80x = 49,752,308,482,470.73
  5. Step 5: Solve for x
    x = 49,752,308,482,470.73/7,991,128.80
  6. Step 6: Final answer
    x = 6,225,942.51

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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.