Home / 68,213,813.20-102,320,719.80-49,178,165.20

Finding the Fourth Proportional to 68,213,813.20, 102,320,719.80 and 49,178,165.20

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Solution

The fourth proportional to 68,213,813.20, 102,320,719.80 and 49,178,165.20 is: 73,767,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,213,813.20 : 102,320,719.80 = 49,178,165.20 : x
  2. Step 2: Convert to fraction form
    68,213,813.20/102,320,719.80 = 49,178,165.20/x
  3. Step 3: Cross multiply
    68,213,813.20x = 102,320,719.80 × 49,178,165.20
  4. Step 4: Simplify right side
    68,213,813.20x = 5,031,945,261,707,311
  5. Step 5: Solve for x
    x = 5,031,945,261,707,311/68,213,813.20
  6. Step 6: Final answer
    x = 73,767,247.80

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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.