Home / 1,251,936,103.20-1,876,392,500.40-638,204,416.80

Finding the Fourth Proportional to 1,251,936,103.20, 1,876,392,500.40 and 638,204,416.80

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Solution

The fourth proportional to 1,251,936,103.20, 1,876,392,500.40 and 638,204,416.80 is: 956,536,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,936,103.20 : 1,876,392,500.40 = 638,204,416.80 : x
  2. Step 2: Convert to fraction form
    1,251,936,103.20/1,876,392,500.40 = 638,204,416.80/x
  3. Step 3: Cross multiply
    1,251,936,103.20x = 1,876,392,500.40 × 638,204,416.80
  4. Step 4: Simplify right side
    1,251,936,103.20x = 1,197,521,981,405,675,776
  5. Step 5: Solve for x
    x = 1,197,521,981,405,675,776/1,251,936,103.20
  6. Step 6: Final answer
    x = 956,536,023.16

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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.