Home / 28,489,591.10-39,315,670.47-15,436,839.72

Finding the Fourth Proportional to 28,489,591.10, 39,315,670.47 and 15,436,839.72

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Solution

The fourth proportional to 28,489,591.10, 39,315,670.47 and 15,436,839.72 is: 21,302,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489,591.10 : 39,315,670.47 = 15,436,839.72 : x
  2. Step 2: Convert to fraction form
    28,489,591.10/39,315,670.47 = 15,436,839.72/x
  3. Step 3: Cross multiply
    28,489,591.10x = 39,315,670.47 × 15,436,839.72
  4. Step 4: Simplify right side
    28,489,591.10x = 606,909,703,677,160.88
  5. Step 5: Solve for x
    x = 606,909,703,677,160.88/28,489,591.10
  6. Step 6: Final answer
    x = 21,302,857.65

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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.