Home / 825,976,028.40-1,238,964,042.60-365,425,321.20

Finding the Fourth Proportional to 825,976,028.40, 1,238,964,042.60 and 365,425,321.20

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Solution

The fourth proportional to 825,976,028.40, 1,238,964,042.60 and 365,425,321.20 is: 548,137,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,976,028.40 : 1,238,964,042.60 = 365,425,321.20 : x
  2. Step 2: Convert to fraction form
    825,976,028.40/1,238,964,042.60 = 365,425,321.20/x
  3. Step 3: Cross multiply
    825,976,028.40x = 1,238,964,042.60 × 365,425,321.20
  4. Step 4: Simplify right side
    825,976,028.40x = 452,748,833,222,355,456
  5. Step 5: Solve for x
    x = 452,748,833,222,355,456/825,976,028.40
  6. Step 6: Final answer
    x = 548,137,981.80

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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.