Home / 766,296,028.80-1,149,444,043.20-221,055,350.40

Finding the Fourth Proportional to 766,296,028.80, 1,149,444,043.20 and 221,055,350.40

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Solution

The fourth proportional to 766,296,028.80, 1,149,444,043.20 and 221,055,350.40 is: 331,583,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,296,028.80 : 1,149,444,043.20 = 221,055,350.40 : x
  2. Step 2: Convert to fraction form
    766,296,028.80/1,149,444,043.20 = 221,055,350.40/x
  3. Step 3: Cross multiply
    766,296,028.80x = 1,149,444,043.20 × 221,055,350.40
  4. Step 4: Simplify right side
    766,296,028.80x = 254,090,755,734,768,768
  5. Step 5: Solve for x
    x = 254,090,755,734,768,768/766,296,028.80
  6. Step 6: Final answer
    x = 331,583,025.60

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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.