Home / 399,450,697.14-551,258,986.20-223,238,687.31

Finding the Fourth Proportional to 399,450,697.14, 551,258,986.20 and 223,238,687.31

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Solution

The fourth proportional to 399,450,697.14, 551,258,986.20 and 223,238,687.31 is: 308,078,902.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,450,697.14 : 551,258,986.20 = 223,238,687.31 : x
  2. Step 2: Convert to fraction form
    399,450,697.14/551,258,986.20 = 223,238,687.31/x
  3. Step 3: Cross multiply
    399,450,697.14x = 551,258,986.20 × 223,238,687.31
  4. Step 4: Simplify right side
    399,450,697.14x = 123,062,332,447,129,424
  5. Step 5: Solve for x
    x = 123,062,332,447,129,424/399,450,697.14
  6. Step 6: Final answer
    x = 308,078,902.67

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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.