Home / 310,442,783.40-465,664,175.10-285,360,517.80

Finding the Fourth Proportional to 310,442,783.40, 465,664,175.10 and 285,360,517.80

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Solution

The fourth proportional to 310,442,783.40, 465,664,175.10 and 285,360,517.80 is: 428,040,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,442,783.40 : 465,664,175.10 = 285,360,517.80 : x
  2. Step 2: Convert to fraction form
    310,442,783.40/465,664,175.10 = 285,360,517.80/x
  3. Step 3: Cross multiply
    310,442,783.40x = 465,664,175.10 × 285,360,517.80
  4. Step 4: Simplify right side
    310,442,783.40x = 132,882,170,127,445,872
  5. Step 5: Solve for x
    x = 132,882,170,127,445,872/310,442,783.40
  6. Step 6: Final answer
    x = 428,040,776.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.