Home / 780,764,150.57-1,171,148,963.30-198,498,458.84

Finding the Fourth Proportional to 780,764,150.57, 1,171,148,963.30 and 198,498,458.84

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Solution

The fourth proportional to 780,764,150.57, 1,171,148,963.30 and 198,498,458.84 is: 297,748,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,764,150.57 : 1,171,148,963.30 = 198,498,458.84 : x
  2. Step 2: Convert to fraction form
    780,764,150.57/1,171,148,963.30 = 198,498,458.84/x
  3. Step 3: Cross multiply
    780,764,150.57x = 1,171,148,963.30 × 198,498,458.84
  4. Step 4: Simplify right side
    780,764,150.57x = 232,471,264,286,121,248
  5. Step 5: Solve for x
    x = 232,471,264,286,121,248/780,764,150.57
  6. Step 6: Final answer
    x = 297,748,384.22

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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.