Home / 856,065,728.05-1,181,399,786.01-816,839,403.55

Finding the Fourth Proportional to 856,065,728.05, 1,181,399,786.01 and 816,839,403.55

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Solution

The fourth proportional to 856,065,728.05, 1,181,399,786.01 and 816,839,403.55 is: 1,127,266,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,065,728.05 : 1,181,399,786.01 = 816,839,403.55 : x
  2. Step 2: Convert to fraction form
    856,065,728.05/1,181,399,786.01 = 816,839,403.55/x
  3. Step 3: Cross multiply
    856,065,728.05x = 1,181,399,786.01 × 816,839,403.55
  4. Step 4: Simplify right side
    856,065,728.05x = 965,013,896,555,552,512
  5. Step 5: Solve for x
    x = 965,013,896,555,552,512/856,065,728.05
  6. Step 6: Final answer
    x = 1,127,266,125.65

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1.5x scale

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.