Home / 72,398,448,015.80-108,597,672,023.70-20,053,635,279.80

Finding the Fourth Proportional to 72,398,448,015.80, 108,597,672,023.70 and 20,053,635,279.80

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Solution

The fourth proportional to 72,398,448,015.80, 108,597,672,023.70 and 20,053,635,279.80 is: 30,080,452,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,398,448,015.80 : 108,597,672,023.70 = 20,053,635,279.80 : x
  2. Step 2: Convert to fraction form
    72,398,448,015.80/108,597,672,023.70 = 20,053,635,279.80/x
  3. Step 3: Cross multiply
    72,398,448,015.80x = 108,597,672,023.70 × 20,053,635,279.80
  4. Step 4: Simplify right side
    72,398,448,015.80x = 2,177,778,106,998,619,635,712
  5. Step 5: Solve for x
    x = 2,177,778,106,998,619,635,712/72,398,448,015.80
  6. Step 6: Final answer
    x = 30,080,452,919.70

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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.