Home / 1,399,687,213.60-2,099,530,820.40-479,257,645.60

Finding the Fourth Proportional to 1,399,687,213.60, 2,099,530,820.40 and 479,257,645.60

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Solution

The fourth proportional to 1,399,687,213.60, 2,099,530,820.40 and 479,257,645.60 is: 718,886,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,687,213.60 : 2,099,530,820.40 = 479,257,645.60 : x
  2. Step 2: Convert to fraction form
    1,399,687,213.60/2,099,530,820.40 = 479,257,645.60/x
  3. Step 3: Cross multiply
    1,399,687,213.60x = 2,099,530,820.40 × 479,257,645.60
  4. Step 4: Simplify right side
    1,399,687,213.60x = 1,006,216,197,849,540,608
  5. Step 5: Solve for x
    x = 1,006,216,197,849,540,608/1,399,687,213.60
  6. Step 6: Final answer
    x = 718,886,468.40

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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.