Home / 313,279,361.82-431,778,278.55-229,469,437.02

Finding the Fourth Proportional to 313,279,361.82, 431,778,278.55 and 229,469,437.02

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Solution

The fourth proportional to 313,279,361.82, 431,778,278.55 and 229,469,437.02 is: 316,266,982.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,279,361.82 : 431,778,278.55 = 229,469,437.02 : x
  2. Step 2: Convert to fraction form
    313,279,361.82/431,778,278.55 = 229,469,437.02/x
  3. Step 3: Cross multiply
    313,279,361.82x = 431,778,278.55 × 229,469,437.02
  4. Step 4: Simplify right side
    313,279,361.82x = 99,079,918,496,333,248
  5. Step 5: Solve for x
    x = 99,079,918,496,333,248/313,279,361.82
  6. Step 6: Final answer
    x = 316,266,982.67

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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.