Home / 28,817,540.88-39,768,520.12-15,764,519.48

Finding the Fourth Proportional to 28,817,540.88, 39,768,520.12 and 15,764,519.48

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Solution

The fourth proportional to 28,817,540.88, 39,768,520.12 and 15,764,519.48 is: 21,755,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817,540.88 : 39,768,520.12 = 15,764,519.48 : x
  2. Step 2: Convert to fraction form
    28,817,540.88/39,768,520.12 = 15,764,519.48/x
  3. Step 3: Cross multiply
    28,817,540.88x = 39,768,520.12 × 15,764,519.48
  4. Step 4: Simplify right side
    28,817,540.88x = 626,931,610,122,511.88
  5. Step 5: Solve for x
    x = 626,931,610,122,511.88/28,817,540.88
  6. Step 6: Final answer
    x = 21,755,208.49

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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.