Home / 511,499,204.12-705,867,574.04-285,435,817.51

Finding the Fourth Proportional to 511,499,204.12, 705,867,574.04 and 285,435,817.51

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Solution

The fourth proportional to 511,499,204.12, 705,867,574.04 and 285,435,817.51 is: 393,900,687.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,499,204.12 : 705,867,574.04 = 285,435,817.51 : x
  2. Step 2: Convert to fraction form
    511,499,204.12/705,867,574.04 = 285,435,817.51/x
  3. Step 3: Cross multiply
    511,499,204.12x = 705,867,574.04 × 285,435,817.51
  4. Step 4: Simplify right side
    511,499,204.12x = 201,479,888,050,290,592
  5. Step 5: Solve for x
    x = 201,479,888,050,290,592/511,499,204.12
  6. Step 6: Final answer
    x = 393,900,687.29

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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.