Home / 40,288,990.74-55,598,878.08-21,954,276.24

Finding the Fourth Proportional to 40,288,990.74, 55,598,878.08 and 21,954,276.24

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Solution

The fourth proportional to 40,288,990.74, 55,598,878.08 and 21,954,276.24 is: 30,296,939.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,288,990.74 : 55,598,878.08 = 21,954,276.24 : x
  2. Step 2: Convert to fraction form
    40,288,990.74/55,598,878.08 = 21,954,276.24/x
  3. Step 3: Cross multiply
    40,288,990.74x = 55,598,878.08 × 21,954,276.24
  4. Step 4: Simplify right side
    40,288,990.74x = 1,220,633,128,002,400.75
  5. Step 5: Solve for x
    x = 1,220,633,128,002,400.75/40,288,990.74
  6. Step 6: Final answer
    x = 30,296,939.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.