Home / 100,956,080.80-151,434,121.20-76,769,610.40

Finding the Fourth Proportional to 100,956,080.80, 151,434,121.20 and 76,769,610.40

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Solution

The fourth proportional to 100,956,080.80, 151,434,121.20 and 76,769,610.40 is: 115,154,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,956,080.80 : 151,434,121.20 = 76,769,610.40 : x
  2. Step 2: Convert to fraction form
    100,956,080.80/151,434,121.20 = 76,769,610.40/x
  3. Step 3: Cross multiply
    100,956,080.80x = 151,434,121.20 × 76,769,610.40
  4. Step 4: Simplify right side
    100,956,080.80x = 11,625,538,485,790,380
  5. Step 5: Solve for x
    x = 11,625,538,485,790,380/100,956,080.80
  6. Step 6: Final answer
    x = 115,154,415.60

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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.