Home / 19,171,147.98-28,756,976.20-6,391,656.78

Finding the Fourth Proportional to 19,171,147.98, 28,756,976.20 and 6,391,656.78

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Solution

The fourth proportional to 19,171,147.98, 28,756,976.20 and 6,391,656.78 is: 9,587,569.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171,147.98 : 28,756,976.20 = 6,391,656.78 : x
  2. Step 2: Convert to fraction form
    19,171,147.98/28,756,976.20 = 6,391,656.78/x
  3. Step 3: Cross multiply
    19,171,147.98x = 28,756,976.20 × 6,391,656.78
  4. Step 4: Simplify right side
    19,171,147.98x = 183,804,721,901,028.62
  5. Step 5: Solve for x
    x = 183,804,721,901,028.62/19,171,147.98
  6. Step 6: Final answer
    x = 9,587,569.93

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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.