Home / 1,000,191,965.45-1,380,264,912.30-560,158,817.45

Finding the Fourth Proportional to 1,000,191,965.45, 1,380,264,912.30 and 560,158,817.45

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Solution

The fourth proportional to 1,000,191,965.45, 1,380,264,912.30 and 560,158,817.45 is: 773,019,168.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,191,965.45 : 1,380,264,912.30 = 560,158,817.45 : x
  2. Step 2: Convert to fraction form
    1,000,191,965.45/1,380,264,912.30 = 560,158,817.45/x
  3. Step 3: Cross multiply
    1,000,191,965.45x = 1,380,264,912.30 × 560,158,817.45
  4. Step 4: Simplify right side
    1,000,191,965.45x = 773,167,561,034,794,624
  5. Step 5: Solve for x
    x = 773,167,561,034,794,624/1,000,191,965.45
  6. Step 6: Final answer
    x = 773,019,168.07

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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.