Home / 143,378,239,132.80-215,067,358,699.20-123,771,073,795.20

Finding the Fourth Proportional to 143,378,239,132.80, 215,067,358,699.20 and 123,771,073,795.20

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Solution

The fourth proportional to 143,378,239,132.80, 215,067,358,699.20 and 123,771,073,795.20 is: 185,656,610,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,378,239,132.80 : 215,067,358,699.20 = 123,771,073,795.20 : x
  2. Step 2: Convert to fraction form
    143,378,239,132.80/215,067,358,699.20 = 123,771,073,795.20/x
  3. Step 3: Cross multiply
    143,378,239,132.80x = 215,067,358,699.20 × 123,771,073,795.20
  4. Step 4: Simplify right side
    143,378,239,132.80x = 26,619,117,924,497,431,199,744
  5. Step 5: Solve for x
    x = 26,619,117,924,497,431,199,744/143,378,239,132.80
  6. Step 6: Final answer
    x = 185,656,610,692.80

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1.5x scale

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.