Home / 323,615,998.40-485,423,997.60-108,205,246.40

Finding the Fourth Proportional to 323,615,998.40, 485,423,997.60 and 108,205,246.40

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Solution

The fourth proportional to 323,615,998.40, 485,423,997.60 and 108,205,246.40 is: 162,307,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,615,998.40 : 485,423,997.60 = 108,205,246.40 : x
  2. Step 2: Convert to fraction form
    323,615,998.40/485,423,997.60 = 108,205,246.40/x
  3. Step 3: Cross multiply
    323,615,998.40x = 485,423,997.60 × 108,205,246.40
  4. Step 4: Simplify right side
    323,615,998.40x = 52,525,423,268,781,016
  5. Step 5: Solve for x
    x = 52,525,423,268,781,016/323,615,998.40
  6. Step 6: Final answer
    x = 162,307,869.60

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Similar ratio
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1.5x scale

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.