Home / 28,446,716.88-39,256,468.29-15,393,975.66

Finding the Fourth Proportional to 28,446,716.88, 39,256,468.29 and 15,393,975.66

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Solution

The fourth proportional to 28,446,716.88, 39,256,468.29 and 15,393,975.66 is: 21,243,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446,716.88 : 39,256,468.29 = 15,393,975.66 : x
  2. Step 2: Convert to fraction form
    28,446,716.88/39,256,468.29 = 15,393,975.66/x
  3. Step 3: Cross multiply
    28,446,716.88x = 39,256,468.29 × 15,393,975.66
  4. Step 4: Simplify right side
    28,446,716.88x = 604,313,117,353,821.88
  5. Step 5: Solve for x
    x = 604,313,117,353,821.88/28,446,716.88
  6. Step 6: Final answer
    x = 21,243,685.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.