Home / 323,396,927.20-485,095,390.80-161,780,543.20

Finding the Fourth Proportional to 323,396,927.20, 485,095,390.80 and 161,780,543.20

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Solution

The fourth proportional to 323,396,927.20, 485,095,390.80 and 161,780,543.20 is: 242,670,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,396,927.20 : 485,095,390.80 = 161,780,543.20 : x
  2. Step 2: Convert to fraction form
    323,396,927.20/485,095,390.80 = 161,780,543.20/x
  3. Step 3: Cross multiply
    323,396,927.20x = 485,095,390.80 × 161,780,543.20
  4. Step 4: Simplify right side
    323,396,927.20x = 78,478,995,827,440,272
  5. Step 5: Solve for x
    x = 78,478,995,827,440,272/323,396,927.20
  6. Step 6: Final answer
    x = 242,670,814.80

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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.