Home / 826,248,220.20-1,239,372,330.30-212,832,445.95

Finding the Fourth Proportional to 826,248,220.20, 1,239,372,330.30 and 212,832,445.95

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Solution

The fourth proportional to 826,248,220.20, 1,239,372,330.30 and 212,832,445.95 is: 319,248,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,248,220.20 : 1,239,372,330.30 = 212,832,445.95 : x
  2. Step 2: Convert to fraction form
    826,248,220.20/1,239,372,330.30 = 212,832,445.95/x
  3. Step 3: Cross multiply
    826,248,220.20x = 1,239,372,330.30 × 212,832,445.95
  4. Step 4: Simplify right side
    826,248,220.20x = 263,778,644,500,500,288
  5. Step 5: Solve for x
    x = 263,778,644,500,500,288/826,248,220.20
  6. Step 6: Final answer
    x = 319,248,668.93

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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.