Home / 323,733,991.20-485,600,986.80-289,721,767.20

Finding the Fourth Proportional to 323,733,991.20, 485,600,986.80 and 289,721,767.20

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Solution

The fourth proportional to 323,733,991.20, 485,600,986.80 and 289,721,767.20 is: 434,582,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,733,991.20 : 485,600,986.80 = 289,721,767.20 : x
  2. Step 2: Convert to fraction form
    323,733,991.20/485,600,986.80 = 289,721,767.20/x
  3. Step 3: Cross multiply
    323,733,991.20x = 485,600,986.80 × 289,721,767.20
  4. Step 4: Simplify right side
    323,733,991.20x = 140,689,176,049,759,872
  5. Step 5: Solve for x
    x = 140,689,176,049,759,872/323,733,991.20
  6. Step 6: Final answer
    x = 434,582,650.80

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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.