Home / 766,367,998.80-1,149,551,998.20-221,127,320.40

Finding the Fourth Proportional to 766,367,998.80, 1,149,551,998.20 and 221,127,320.40

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Solution

The fourth proportional to 766,367,998.80, 1,149,551,998.20 and 221,127,320.40 is: 331,690,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,367,998.80 : 1,149,551,998.20 = 221,127,320.40 : x
  2. Step 2: Convert to fraction form
    766,367,998.80/1,149,551,998.20 = 221,127,320.40/x
  3. Step 3: Cross multiply
    766,367,998.80x = 1,149,551,998.20 × 221,127,320.40
  4. Step 4: Simplify right side
    766,367,998.80x = 254,197,353,022,431,648
  5. Step 5: Solve for x
    x = 254,197,353,022,431,648/766,367,998.80
  6. Step 6: Final answer
    x = 331,690,980.60

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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.