Home / 1,991,014,042.20-2,986,664,552.36-764,182,493.72

Finding the Fourth Proportional to 1,991,014,042.20, 2,986,664,552.36 and 764,182,493.72

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Solution

The fourth proportional to 1,991,014,042.20, 2,986,664,552.36 and 764,182,493.72 is: 1,146,328,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,014,042.20 : 2,986,664,552.36 = 764,182,493.72 : x
  2. Step 2: Convert to fraction form
    1,991,014,042.20/2,986,664,552.36 = 764,182,493.72/x
  3. Step 3: Cross multiply
    1,991,014,042.20x = 2,986,664,552.36 × 764,182,493.72
  4. Step 4: Simplify right side
    1,991,014,042.20x = 2,282,356,765,527,592,448
  5. Step 5: Solve for x
    x = 2,282,356,765,527,592,448/1,991,014,042.20
  6. Step 6: Final answer
    x = 1,146,328,813.94

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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.