Home / 323,406,543.60-485,109,815.40-272,388,207.60

Finding the Fourth Proportional to 323,406,543.60, 485,109,815.40 and 272,388,207.60

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Solution

The fourth proportional to 323,406,543.60, 485,109,815.40 and 272,388,207.60 is: 408,582,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,406,543.60 : 485,109,815.40 = 272,388,207.60 : x
  2. Step 2: Convert to fraction form
    323,406,543.60/485,109,815.40 = 272,388,207.60/x
  3. Step 3: Cross multiply
    323,406,543.60x = 485,109,815.40 × 272,388,207.60
  4. Step 4: Simplify right side
    323,406,543.60x = 132,138,193,105,972,880
  5. Step 5: Solve for x
    x = 132,138,193,105,972,880/323,406,543.60
  6. Step 6: Final answer
    x = 408,582,311.40

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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.