Home / 321,815,817.60-443,797,084.80-216,207,836.16

Finding the Fourth Proportional to 321,815,817.60, 443,797,084.80 and 216,207,836.16

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Solution

The fourth proportional to 321,815,817.60, 443,797,084.80 and 216,207,836.16 is: 298,159,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,815,817.60 : 443,797,084.80 = 216,207,836.16 : x
  2. Step 2: Convert to fraction form
    321,815,817.60/443,797,084.80 = 216,207,836.16/x
  3. Step 3: Cross multiply
    321,815,817.60x = 443,797,084.80 × 216,207,836.16
  4. Step 4: Simplify right side
    321,815,817.60x = 95,952,407,398,724,032
  5. Step 5: Solve for x
    x = 95,952,407,398,724,032/321,815,817.60
  6. Step 6: Final answer
    x = 298,159,388.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.