Home / 511,499,204.87-705,867,575.07-285,435,818.27

Finding the Fourth Proportional to 511,499,204.87, 705,867,575.07 and 285,435,818.27

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Solution

The fourth proportional to 511,499,204.87, 705,867,575.07 and 285,435,818.27 is: 393,900,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,499,204.87 : 705,867,575.07 = 285,435,818.27 : x
  2. Step 2: Convert to fraction form
    511,499,204.87/705,867,575.07 = 285,435,818.27/x
  3. Step 3: Cross multiply
    511,499,204.87x = 705,867,575.07 × 285,435,818.27
  4. Step 4: Simplify right side
    511,499,204.87x = 201,479,888,876,836,768
  5. Step 5: Solve for x
    x = 201,479,888,876,836,768/511,499,204.87
  6. Step 6: Final answer
    x = 393,900,688.32

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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.