Home / 78,854,209.40-108,816,518.04-43,571,453.88

Finding the Fourth Proportional to 78,854,209.40, 108,816,518.04 and 43,571,453.88

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Solution

The fourth proportional to 78,854,209.40, 108,816,518.04 and 43,571,453.88 is: 60,127,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,854,209.40 : 108,816,518.04 = 43,571,453.88 : x
  2. Step 2: Convert to fraction form
    78,854,209.40/108,816,518.04 = 43,571,453.88/x
  3. Step 3: Cross multiply
    78,854,209.40x = 108,816,518.04 × 43,571,453.88
  4. Step 4: Simplify right side
    78,854,209.40x = 4,741,293,897,162,049
  5. Step 5: Solve for x
    x = 4,741,293,897,162,049/78,854,209.40
  6. Step 6: Final answer
    x = 60,127,340.48

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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.