Home / 225,980,938.20-338,971,407.30-212,376,048.60

Finding the Fourth Proportional to 225,980,938.20, 338,971,407.30 and 212,376,048.60

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Solution

The fourth proportional to 225,980,938.20, 338,971,407.30 and 212,376,048.60 is: 318,564,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,980,938.20 : 338,971,407.30 = 212,376,048.60 : x
  2. Step 2: Convert to fraction form
    225,980,938.20/338,971,407.30 = 212,376,048.60/x
  3. Step 3: Cross multiply
    225,980,938.20x = 338,971,407.30 × 212,376,048.60
  4. Step 4: Simplify right side
    225,980,938.20x = 71,989,408,070,755,192
  5. Step 5: Solve for x
    x = 71,989,408,070,755,192/225,980,938.20
  6. Step 6: Final answer
    x = 318,564,072.90

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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.