Home / 218,820,621.60-328,230,932.40-127,897,408.80

Finding the Fourth Proportional to 218,820,621.60, 328,230,932.40 and 127,897,408.80

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Solution

The fourth proportional to 218,820,621.60, 328,230,932.40 and 127,897,408.80 is: 191,846,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,820,621.60 : 328,230,932.40 = 127,897,408.80 : x
  2. Step 2: Convert to fraction form
    218,820,621.60/328,230,932.40 = 127,897,408.80/x
  3. Step 3: Cross multiply
    218,820,621.60x = 328,230,932.40 × 127,897,408.80
  4. Step 4: Simplify right side
    218,820,621.60x = 41,979,885,741,967,960
  5. Step 5: Solve for x
    x = 41,979,885,741,967,960/218,820,621.60
  6. Step 6: Final answer
    x = 191,846,113.20

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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.