Home / 20,218,294.95-30,327,442.43-12,565,544.55

Finding the Fourth Proportional to 20,218,294.95, 30,327,442.43 and 12,565,544.55

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Solution

The fourth proportional to 20,218,294.95, 30,327,442.43 and 12,565,544.55 is: 18,848,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218,294.95 : 30,327,442.43 = 12,565,544.55 : x
  2. Step 2: Convert to fraction form
    20,218,294.95/30,327,442.43 = 12,565,544.55/x
  3. Step 3: Cross multiply
    20,218,294.95x = 30,327,442.43 × 12,565,544.55
  4. Step 4: Simplify right side
    20,218,294.95x = 381,080,828,878,897.56
  5. Step 5: Solve for x
    x = 381,080,828,878,897.56/20,218,294.95
  6. Step 6: Final answer
    x = 18,848,316.83

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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.