Home / 1,000,191,987.56-1,380,264,942.87-560,158,839.56

Finding the Fourth Proportional to 1,000,191,987.56, 1,380,264,942.87 and 560,158,839.56

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Solution

The fourth proportional to 1,000,191,987.56, 1,380,264,942.87 and 560,158,839.56 is: 773,019,198.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,191,987.56 : 1,380,264,942.87 = 560,158,839.56 : x
  2. Step 2: Convert to fraction form
    1,000,191,987.56/1,380,264,942.87 = 560,158,839.56/x
  3. Step 3: Cross multiply
    1,000,191,987.56x = 1,380,264,942.87 × 560,158,839.56
  4. Step 4: Simplify right side
    1,000,191,987.56x = 773,167,608,686,859,520
  5. Step 5: Solve for x
    x = 773,167,608,686,859,520/1,000,191,987.56
  6. Step 6: Final answer
    x = 773,019,198.62

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1.5x scale

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.