Home / 28,817,538.89-39,768,517.35-15,764,517.47

Finding the Fourth Proportional to 28,817,538.89, 39,768,517.35 and 15,764,517.47

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Solution

The fourth proportional to 28,817,538.89, 39,768,517.35 and 15,764,517.47 is: 21,755,205.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817,538.89 : 39,768,517.35 = 15,764,517.47 : x
  2. Step 2: Convert to fraction form
    28,817,538.89/39,768,517.35 = 15,764,517.47/x
  3. Step 3: Cross multiply
    28,817,538.89x = 39,768,517.35 × 15,764,517.47
  4. Step 4: Simplify right side
    28,817,538.89x = 626,931,486,619,494.38
  5. Step 5: Solve for x
    x = 626,931,486,619,494.38/28,817,538.89
  6. Step 6: Final answer
    x = 21,755,205.71

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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.