Home / 133,348,002.80-199,707,431.40-82,387,209.20

Finding the Fourth Proportional to 133,348,002.80, 199,707,431.40 and 82,387,209.20

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Solution

The fourth proportional to 133,348,002.80, 199,707,431.40 and 82,387,209.20 is: 123,386,459.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,348,002.80 : 199,707,431.40 = 82,387,209.20 : x
  2. Step 2: Convert to fraction form
    133,348,002.80/199,707,431.40 = 82,387,209.20/x
  3. Step 3: Cross multiply
    133,348,002.80x = 199,707,431.40 × 82,387,209.20
  4. Step 4: Simplify right side
    133,348,002.80x = 16,453,337,929,546,450
  5. Step 5: Solve for x
    x = 16,453,337,929,546,450/133,348,002.80
  6. Step 6: Final answer
    x = 123,386,459.37

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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.