Home / 338,795,355.75-507,970,017.90-223,428,131.43

Finding the Fourth Proportional to 338,795,355.75, 507,970,017.90 and 223,428,131.43

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Solution

The fourth proportional to 338,795,355.75, 507,970,017.90 and 223,428,131.43 is: 334,995,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,795,355.75 : 507,970,017.90 = 223,428,131.43 : x
  2. Step 2: Convert to fraction form
    338,795,355.75/507,970,017.90 = 223,428,131.43/x
  3. Step 3: Cross multiply
    338,795,355.75x = 507,970,017.90 × 223,428,131.43
  4. Step 4: Simplify right side
    338,795,355.75x = 113,494,791,921,860,656
  5. Step 5: Solve for x
    x = 113,494,791,921,860,656/338,795,355.75
  6. Step 6: Final answer
    x = 334,995,123.15

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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.