Home / 780,764,137.01-1,171,148,943.01-198,498,445.28

Finding the Fourth Proportional to 780,764,137.01, 1,171,148,943.01 and 198,498,445.28

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Solution

The fourth proportional to 780,764,137.01, 1,171,148,943.01 and 198,498,445.28 is: 297,748,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,764,137.01 : 1,171,148,943.01 = 198,498,445.28 : x
  2. Step 2: Convert to fraction form
    780,764,137.01/1,171,148,943.01 = 198,498,445.28/x
  3. Step 3: Cross multiply
    780,764,137.01x = 1,171,148,943.01 × 198,498,445.28
  4. Step 4: Simplify right side
    780,764,137.01x = 232,471,244,378,800,320
  5. Step 5: Solve for x
    x = 232,471,244,378,800,320/780,764,137.01
  6. Step 6: Final answer
    x = 297,748,363.89

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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.