Home / 766,368,588.80-1,149,552,883.20-221,127,910.40

Finding the Fourth Proportional to 766,368,588.80, 1,149,552,883.20 and 221,127,910.40

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Solution

The fourth proportional to 766,368,588.80, 1,149,552,883.20 and 221,127,910.40 is: 331,691,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,368,588.80 : 1,149,552,883.20 = 221,127,910.40 : x
  2. Step 2: Convert to fraction form
    766,368,588.80/1,149,552,883.20 = 221,127,910.40/x
  3. Step 3: Cross multiply
    766,368,588.80x = 1,149,552,883.20 × 221,127,910.40
  4. Step 4: Simplify right side
    766,368,588.80x = 254,198,226,956,311,296
  5. Step 5: Solve for x
    x = 254,198,226,956,311,296/766,368,588.80
  6. Step 6: Final answer
    x = 331,691,865.60

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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.