Home / 1,987,776,015.40-2,981,664,023.10-533,900,405.80

Finding the Fourth Proportional to 1,987,776,015.40, 2,981,664,023.10 and 533,900,405.80

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Solution

The fourth proportional to 1,987,776,015.40, 2,981,664,023.10 and 533,900,405.80 is: 800,850,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,776,015.40 : 2,981,664,023.10 = 533,900,405.80 : x
  2. Step 2: Convert to fraction form
    1,987,776,015.40/2,981,664,023.10 = 533,900,405.80/x
  3. Step 3: Cross multiply
    1,987,776,015.40x = 2,981,664,023.10 × 533,900,405.80
  4. Step 4: Simplify right side
    1,987,776,015.40x = 1,591,911,631,892,350,464
  5. Step 5: Solve for x
    x = 1,591,911,631,892,350,464/1,987,776,015.40
  6. Step 6: Final answer
    x = 800,850,608.70

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Double scale
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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.