Home / 1,539,649,373.80-2,309,474,060.70-721,844,343.40

Finding the Fourth Proportional to 1,539,649,373.80, 2,309,474,060.70 and 721,844,343.40

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Solution

The fourth proportional to 1,539,649,373.80, 2,309,474,060.70 and 721,844,343.40 is: 1,082,766,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,649,373.80 : 2,309,474,060.70 = 721,844,343.40 : x
  2. Step 2: Convert to fraction form
    1,539,649,373.80/2,309,474,060.70 = 721,844,343.40/x
  3. Step 3: Cross multiply
    1,539,649,373.80x = 2,309,474,060.70 × 721,844,343.40
  4. Step 4: Simplify right side
    1,539,649,373.80x = 1,667,080,786,945,323,008
  5. Step 5: Solve for x
    x = 1,667,080,786,945,323,008/1,539,649,373.80
  6. Step 6: Final answer
    x = 1,082,766,515.10

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Double scale
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Similar ratio
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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.