Home / 253,206,851.20-379,810,276.80-80,696,291.20

Finding the Fourth Proportional to 253,206,851.20, 379,810,276.80 and 80,696,291.20

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Solution

The fourth proportional to 253,206,851.20, 379,810,276.80 and 80,696,291.20 is: 121,044,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,206,851.20 : 379,810,276.80 = 80,696,291.20 : x
  2. Step 2: Convert to fraction form
    253,206,851.20/379,810,276.80 = 80,696,291.20/x
  3. Step 3: Cross multiply
    253,206,851.20x = 379,810,276.80 × 80,696,291.20
  4. Step 4: Simplify right side
    253,206,851.20x = 30,649,280,697,405,408
  5. Step 5: Solve for x
    x = 30,649,280,697,405,408/253,206,851.20
  6. Step 6: Final answer
    x = 121,044,436.80

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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.