Home / 218,823,315.20-328,234,972.80-167,804,979.20

Finding the Fourth Proportional to 218,823,315.20, 328,234,972.80 and 167,804,979.20

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Solution

The fourth proportional to 218,823,315.20, 328,234,972.80 and 167,804,979.20 is: 251,707,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,823,315.20 : 328,234,972.80 = 167,804,979.20 : x
  2. Step 2: Convert to fraction form
    218,823,315.20/328,234,972.80 = 167,804,979.20/x
  3. Step 3: Cross multiply
    218,823,315.20x = 328,234,972.80 × 167,804,979.20
  4. Step 4: Simplify right side
    218,823,315.20x = 55,079,462,783,416,560
  5. Step 5: Solve for x
    x = 55,079,462,783,416,560/218,823,315.20
  6. Step 6: Final answer
    x = 251,707,468.80

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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.