Home / 20,387,370.07-30,565,780.43-12,298,460.18

Finding the Fourth Proportional to 20,387,370.07, 30,565,780.43 and 12,298,460.18

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Solution

The fourth proportional to 20,387,370.07, 30,565,780.43 and 12,298,460.18 is: 18,438,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387,370.07 : 30,565,780.43 = 12,298,460.18 : x
  2. Step 2: Convert to fraction form
    20,387,370.07/30,565,780.43 = 12,298,460.18/x
  3. Step 3: Cross multiply
    20,387,370.07x = 30,565,780.43 × 12,298,460.18
  4. Step 4: Simplify right side
    20,387,370.07x = 375,912,033,503,900.44
  5. Step 5: Solve for x
    x = 375,912,033,503,900.44/20,387,370.07
  6. Step 6: Final answer
    x = 18,438,475.99

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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.