Home / 123,662,788.80-185,494,183.20-120,828,436.80

Finding the Fourth Proportional to 123,662,788.80, 185,494,183.20 and 120,828,436.80

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Solution

The fourth proportional to 123,662,788.80, 185,494,183.20 and 120,828,436.80 is: 181,242,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,662,788.80 : 185,494,183.20 = 120,828,436.80 : x
  2. Step 2: Convert to fraction form
    123,662,788.80/185,494,183.20 = 120,828,436.80/x
  3. Step 3: Cross multiply
    123,662,788.80x = 185,494,183.20 × 120,828,436.80
  4. Step 4: Simplify right side
    123,662,788.80x = 22,412,972,191,548,820
  5. Step 5: Solve for x
    x = 22,412,972,191,548,820/123,662,788.80
  6. Step 6: Final answer
    x = 181,242,655.20

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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.