Home / 18,762,867.12-28,107,646.56-12,926,022.24

Finding the Fourth Proportional to 18,762,867.12, 28,107,646.56 and 12,926,022.24

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Solution

The fourth proportional to 18,762,867.12, 28,107,646.56 and 12,926,022.24 is: 19,363,781.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762,867.12 : 28,107,646.56 = 12,926,022.24 : x
  2. Step 2: Convert to fraction form
    18,762,867.12/28,107,646.56 = 12,926,022.24/x
  3. Step 3: Cross multiply
    18,762,867.12x = 28,107,646.56 × 12,926,022.24
  4. Step 4: Simplify right side
    18,762,867.12x = 363,320,064,548,619.50
  5. Step 5: Solve for x
    x = 363,320,064,548,619.50/18,762,867.12
  6. Step 6: Final answer
    x = 19,363,781.78

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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.