Home / 20,958,442.88-28,922,646.72-11,665,812.56

Finding the Fourth Proportional to 20,958,442.88, 28,922,646.72 and 11,665,812.56

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Solution

The fourth proportional to 20,958,442.88, 28,922,646.72 and 11,665,812.56 is: 16,098,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958,442.88 : 28,922,646.72 = 11,665,812.56 : x
  2. Step 2: Convert to fraction form
    20,958,442.88/28,922,646.72 = 11,665,812.56/x
  3. Step 3: Cross multiply
    20,958,442.88x = 28,922,646.72 × 11,665,812.56
  4. Step 4: Simplify right side
    20,958,442.88x = 337,406,175,374,618.81
  5. Step 5: Solve for x
    x = 337,406,175,374,618.81/20,958,442.88
  6. Step 6: Final answer
    x = 16,098,818.85

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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.