Home / 819,694,278.80-1,229,116,265.40-301,858,168.40

Finding the Fourth Proportional to 819,694,278.80, 1,229,116,265.40 and 301,858,168.40

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Solution

The fourth proportional to 819,694,278.80, 1,229,116,265.40 and 301,858,168.40 is: 452,630,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,694,278.80 : 1,229,116,265.40 = 301,858,168.40 : x
  2. Step 2: Convert to fraction form
    819,694,278.80/1,229,116,265.40 = 301,858,168.40/x
  3. Step 3: Cross multiply
    819,694,278.80x = 1,229,116,265.40 × 301,858,168.40
  4. Step 4: Simplify right side
    819,694,278.80x = 371,018,784,624,292,288
  5. Step 5: Solve for x
    x = 371,018,784,624,292,288/819,694,278.80
  6. Step 6: Final answer
    x = 452,630,687.10

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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.