Home / 28,502,208.86-39,331,994.45-15,449,187.56

Finding the Fourth Proportional to 28,502,208.86, 39,331,994.45 and 15,449,187.56

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Solution

The fourth proportional to 28,502,208.86, 39,331,994.45 and 15,449,187.56 is: 21,319,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502,208.86 : 39,331,994.45 = 15,449,187.56 : x
  2. Step 2: Convert to fraction form
    28,502,208.86/39,331,994.45 = 15,449,187.56/x
  3. Step 3: Cross multiply
    28,502,208.86x = 39,331,994.45 × 15,449,187.56
  4. Step 4: Simplify right side
    28,502,208.86x = 607,647,359,093,023.12
  5. Step 5: Solve for x
    x = 607,647,359,093,023.12/28,502,208.86
  6. Step 6: Final answer
    x = 21,319,307.64

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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.