Home / 123,589,843.80-185,384,765.70-69,170,285.40

Finding the Fourth Proportional to 123,589,843.80, 185,384,765.70 and 69,170,285.40

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Solution

The fourth proportional to 123,589,843.80, 185,384,765.70 and 69,170,285.40 is: 103,755,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,589,843.80 : 185,384,765.70 = 69,170,285.40 : x
  2. Step 2: Convert to fraction form
    123,589,843.80/185,384,765.70 = 69,170,285.40/x
  3. Step 3: Cross multiply
    123,589,843.80x = 185,384,765.70 × 69,170,285.40
  4. Step 4: Simplify right side
    123,589,843.80x = 12,823,117,152,281,132
  5. Step 5: Solve for x
    x = 12,823,117,152,281,132/123,589,843.80
  6. Step 6: Final answer
    x = 103,755,428.10

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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.