Home / 1,539,649,129.80-2,309,473,694.70-721,844,099.40

Finding the Fourth Proportional to 1,539,649,129.80, 2,309,473,694.70 and 721,844,099.40

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Solution

The fourth proportional to 1,539,649,129.80, 2,309,473,694.70 and 721,844,099.40 is: 1,082,766,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,649,129.80 : 2,309,473,694.70 = 721,844,099.40 : x
  2. Step 2: Convert to fraction form
    1,539,649,129.80/2,309,473,694.70 = 721,844,099.40/x
  3. Step 3: Cross multiply
    1,539,649,129.80x = 2,309,473,694.70 × 721,844,099.40
  4. Step 4: Simplify right side
    1,539,649,129.80x = 1,667,079,959,238,711,808
  5. Step 5: Solve for x
    x = 1,667,079,959,238,711,808/1,539,649,129.80
  6. Step 6: Final answer
    x = 1,082,766,149.10

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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.