Home / 21,519,620.80-32,342,416.80-18,748,254.40

Finding the Fourth Proportional to 21,519,620.80, 32,342,416.80 and 18,748,254.40

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Solution

The fourth proportional to 21,519,620.80, 32,342,416.80 and 18,748,254.40 is: 28,177,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519,620.80 : 32,342,416.80 = 18,748,254.40 : x
  2. Step 2: Convert to fraction form
    21,519,620.80/32,342,416.80 = 18,748,254.40/x
  3. Step 3: Cross multiply
    21,519,620.80x = 32,342,416.80 × 18,748,254.40
  4. Step 4: Simplify right side
    21,519,620.80x = 606,363,858,077,233.88
  5. Step 5: Solve for x
    x = 606,363,858,077,233.88/21,519,620.80
  6. Step 6: Final answer
    x = 28,177,255.71

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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.