Home / 220,768,328.96-304,676,396.16-127,972,793.60

Finding the Fourth Proportional to 220,768,328.96, 304,676,396.16 and 127,972,793.60

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Solution

The fourth proportional to 220,768,328.96, 304,676,396.16 and 127,972,793.60 is: 176,611,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,768,328.96 : 304,676,396.16 = 127,972,793.60 : x
  2. Step 2: Convert to fraction form
    220,768,328.96/304,676,396.16 = 127,972,793.60/x
  3. Step 3: Cross multiply
    220,768,328.96x = 304,676,396.16 × 127,972,793.60
  4. Step 4: Simplify right side
    220,768,328.96x = 38,990,289,560,575,512
  5. Step 5: Solve for x
    x = 38,990,289,560,575,512/220,768,328.96
  6. Step 6: Final answer
    x = 176,611,789.13

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1.5x scale

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.