Home / 101,500,868.88-140,070,844.80-55,091,120.40

Finding the Fourth Proportional to 101,500,868.88, 140,070,844.80 and 55,091,120.40

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Solution

The fourth proportional to 101,500,868.88, 140,070,844.80 and 55,091,120.40 is: 76,025,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,500,868.88 : 140,070,844.80 = 55,091,120.40 : x
  2. Step 2: Convert to fraction form
    101,500,868.88/140,070,844.80 = 55,091,120.40/x
  3. Step 3: Cross multiply
    101,500,868.88x = 140,070,844.80 × 55,091,120.40
  4. Step 4: Simplify right side
    101,500,868.88x = 7,716,659,775,406,514
  5. Step 5: Solve for x
    x = 7,716,659,775,406,514/101,500,868.88
  6. Step 6: Final answer
    x = 76,025,553.88

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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.