Home / 516,408,499.98-712,658,665.53-281,474,377.11

Finding the Fourth Proportional to 516,408,499.98, 712,658,665.53 and 281,474,377.11

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Solution

The fourth proportional to 516,408,499.98, 712,658,665.53 and 281,474,377.11 is: 388,442,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,408,499.98 : 712,658,665.53 = 281,474,377.11 : x
  2. Step 2: Convert to fraction form
    516,408,499.98/712,658,665.53 = 281,474,377.11/x
  3. Step 3: Cross multiply
    516,408,499.98x = 712,658,665.53 × 281,474,377.11
  4. Step 4: Simplify right side
    516,408,499.98x = 200,595,153,972,100,576
  5. Step 5: Solve for x
    x = 200,595,153,972,100,576/516,408,499.98
  6. Step 6: Final answer
    x = 388,442,781.21

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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.