Home / 120,967,900.80-181,153,252.80-80,358,518.40

Finding the Fourth Proportional to 120,967,900.80, 181,153,252.80 and 80,358,518.40

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Solution

The fourth proportional to 120,967,900.80, 181,153,252.80 and 80,358,518.40 is: 120,339,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,967,900.80 : 181,153,252.80 = 80,358,518.40 : x
  2. Step 2: Convert to fraction form
    120,967,900.80/181,153,252.80 = 80,358,518.40/x
  3. Step 3: Cross multiply
    120,967,900.80x = 181,153,252.80 × 80,358,518.40
  4. Step 4: Simplify right side
    120,967,900.80x = 14,557,206,998,348,654
  5. Step 5: Solve for x
    x = 14,557,206,998,348,654/120,967,900.80
  6. Step 6: Final answer
    x = 120,339,419.81

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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.