Home / 320,810,519.60-442,707,061.38-181,578,291.20

Finding the Fourth Proportional to 320,810,519.60, 442,707,061.38 and 181,578,291.20

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Solution

The fourth proportional to 320,810,519.60, 442,707,061.38 and 181,578,291.20 is: 250,571,557.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,810,519.60 : 442,707,061.38 = 181,578,291.20 : x
  2. Step 2: Convert to fraction form
    320,810,519.60/442,707,061.38 = 181,578,291.20/x
  3. Step 3: Cross multiply
    320,810,519.60x = 442,707,061.38 × 181,578,291.20
  4. Step 4: Simplify right side
    320,810,519.60x = 80,385,991,707,553,904
  5. Step 5: Solve for x
    x = 80,385,991,707,553,904/320,810,519.60
  6. Step 6: Final answer
    x = 250,571,557.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.