Home / 19,142,151.95-28,645,780.83-11,957,069.63

Finding the Fourth Proportional to 19,142,151.95, 28,645,780.83 and 11,957,069.63

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Solution

The fourth proportional to 19,142,151.95, 28,645,780.83 and 11,957,069.63 is: 17,893,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142,151.95 : 28,645,780.83 = 11,957,069.63 : x
  2. Step 2: Convert to fraction form
    19,142,151.95/28,645,780.83 = 11,957,069.63/x
  3. Step 3: Cross multiply
    19,142,151.95x = 28,645,780.83 × 11,957,069.63
  4. Step 4: Simplify right side
    19,142,151.95x = 342,519,595,846,800.25
  5. Step 5: Solve for x
    x = 342,519,595,846,800.25/19,142,151.95
  6. Step 6: Final answer
    x = 17,893,473.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.