Home / 1,392,807,847.76-1,922,074,766.36-766,262,834.56

Finding the Fourth Proportional to 1,392,807,847.76, 1,922,074,766.36 and 766,262,834.56

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Solution

The fourth proportional to 1,392,807,847.76, 1,922,074,766.36 and 766,262,834.56 is: 1,057,442,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,807,847.76 : 1,922,074,766.36 = 766,262,834.56 : x
  2. Step 2: Convert to fraction form
    1,392,807,847.76/1,922,074,766.36 = 766,262,834.56/x
  3. Step 3: Cross multiply
    1,392,807,847.76x = 1,922,074,766.36 × 766,262,834.56
  4. Step 4: Simplify right side
    1,392,807,847.76x = 1,472,814,458,707,263,232
  5. Step 5: Solve for x
    x = 1,472,814,458,707,263,232/1,392,807,847.76
  6. Step 6: Final answer
    x = 1,057,442,676.73

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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.