Home / 123,562,704.80-185,344,057.20-78,325,047.20

Finding the Fourth Proportional to 123,562,704.80, 185,344,057.20 and 78,325,047.20

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Solution

The fourth proportional to 123,562,704.80, 185,344,057.20 and 78,325,047.20 is: 117,487,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,562,704.80 : 185,344,057.20 = 78,325,047.20 : x
  2. Step 2: Convert to fraction form
    123,562,704.80/185,344,057.20 = 78,325,047.20/x
  3. Step 3: Cross multiply
    123,562,704.80x = 185,344,057.20 × 78,325,047.20
  4. Step 4: Simplify right side
    123,562,704.80x = 14,517,082,028,429,500
  5. Step 5: Solve for x
    x = 14,517,082,028,429,500/123,562,704.80
  6. Step 6: Final answer
    x = 117,487,570.80

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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.