Home / 806,189,212.80-1,209,283,819.20-346,049,078.40

Finding the Fourth Proportional to 806,189,212.80, 1,209,283,819.20 and 346,049,078.40

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Solution

The fourth proportional to 806,189,212.80, 1,209,283,819.20 and 346,049,078.40 is: 519,073,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,189,212.80 : 1,209,283,819.20 = 346,049,078.40 : x
  2. Step 2: Convert to fraction form
    806,189,212.80/1,209,283,819.20 = 346,049,078.40/x
  3. Step 3: Cross multiply
    806,189,212.80x = 1,209,283,819.20 × 346,049,078.40
  4. Step 4: Simplify right side
    806,189,212.80x = 418,471,551,158,192,192
  5. Step 5: Solve for x
    x = 418,471,551,158,192,192/806,189,212.80
  6. Step 6: Final answer
    x = 519,073,617.60

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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.