Home / 766,368,418.80-1,149,552,628.20-221,127,740.40

Finding the Fourth Proportional to 766,368,418.80, 1,149,552,628.20 and 221,127,740.40

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Solution

The fourth proportional to 766,368,418.80, 1,149,552,628.20 and 221,127,740.40 is: 331,691,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,368,418.80 : 1,149,552,628.20 = 221,127,740.40 : x
  2. Step 2: Convert to fraction form
    766,368,418.80/1,149,552,628.20 = 221,127,740.40/x
  3. Step 3: Cross multiply
    766,368,418.80x = 1,149,552,628.20 × 221,127,740.40
  4. Step 4: Simplify right side
    766,368,418.80x = 254,197,975,144,747,328
  5. Step 5: Solve for x
    x = 254,197,975,144,747,328/766,368,418.80
  6. Step 6: Final answer
    x = 331,691,610.60

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Double scale
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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.