Home / 28,374,161.21-42,526,770.80-15,389,521.38

Finding the Fourth Proportional to 28,374,161.21, 42,526,770.80 and 15,389,521.38

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Solution

The fourth proportional to 28,374,161.21, 42,526,770.80 and 15,389,521.38 is: 23,065,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374,161.21 : 42,526,770.80 = 15,389,521.38 : x
  2. Step 2: Convert to fraction form
    28,374,161.21/42,526,770.80 = 15,389,521.38/x
  3. Step 3: Cross multiply
    28,374,161.21x = 42,526,770.80 × 15,389,521.38
  4. Step 4: Simplify right side
    28,374,161.21x = 654,466,648,372,012.12
  5. Step 5: Solve for x
    x = 654,466,648,372,012.12/28,374,161.21
  6. Step 6: Final answer
    x = 23,065,585.75

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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.