Home / 764,836,303,979.50-1,055,488,790,695.10-417,620,349,728.20

Finding the Fourth Proportional to 764,836,303,979.50, 1,055,488,790,695.10 and 417,620,349,728.20

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Solution

The fourth proportional to 764,836,303,979.50, 1,055,488,790,695.10 and 417,620,349,728.20 is: 576,324,104,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,836,303,979.50 : 1,055,488,790,695.10 = 417,620,349,728.20 : x
  2. Step 2: Convert to fraction form
    764,836,303,979.50/1,055,488,790,695.10 = 417,620,349,728.20/x
  3. Step 3: Cross multiply
    764,836,303,979.50x = 1,055,488,790,695.10 × 417,620,349,728.20
  4. Step 4: Simplify right side
    764,836,303,979.50x = 440,793,597,904,282,569,408,512
  5. Step 5: Solve for x
    x = 440,793,597,904,282,569,408,512/764,836,303,979.50
  6. Step 6: Final answer
    x = 576,324,104,400.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.