Home / 1,539,649,128.80-2,309,473,693.20-721,844,098.40

Finding the Fourth Proportional to 1,539,649,128.80, 2,309,473,693.20 and 721,844,098.40

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Solution

The fourth proportional to 1,539,649,128.80, 2,309,473,693.20 and 721,844,098.40 is: 1,082,766,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,649,128.80 : 2,309,473,693.20 = 721,844,098.40 : x
  2. Step 2: Convert to fraction form
    1,539,649,128.80/2,309,473,693.20 = 721,844,098.40/x
  3. Step 3: Cross multiply
    1,539,649,128.80x = 2,309,473,693.20 × 721,844,098.40
  4. Step 4: Simplify right side
    1,539,649,128.80x = 1,667,079,955,846,471,936
  5. Step 5: Solve for x
    x = 1,667,079,955,846,471,936/1,539,649,128.80
  6. Step 6: Final answer
    x = 1,082,766,147.60

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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.