Home / 1,011,558,847.54-1,395,981,878.62-565,541,003.20

Finding the Fourth Proportional to 1,011,558,847.54, 1,395,981,878.62 and 565,541,003.20

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Solution

The fourth proportional to 1,011,558,847.54, 1,395,981,878.62 and 565,541,003.20 is: 780,463,730.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,558,847.54 : 1,395,981,878.62 = 565,541,003.20 : x
  2. Step 2: Convert to fraction form
    1,011,558,847.54/1,395,981,878.62 = 565,541,003.20/x
  3. Step 3: Cross multiply
    1,011,558,847.54x = 1,395,981,878.62 × 565,541,003.20
  4. Step 4: Simplify right side
    1,011,558,847.54x = 789,484,992,083,775,488
  5. Step 5: Solve for x
    x = 789,484,992,083,775,488/1,011,558,847.54
  6. Step 6: Final answer
    x = 780,463,730.81

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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.