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Finding the Fourth Proportional to 13,993,901.52, 20,943,451.04 and 8,605,969.44

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Solution

The fourth proportional to 13,993,901.52, 20,943,451.04 and 8,605,969.44 is: 12,879,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993,901.52 : 20,943,451.04 = 8,605,969.44 : x
  2. Step 2: Convert to fraction form
    13,993,901.52/20,943,451.04 = 8,605,969.44/x
  3. Step 3: Cross multiply
    13,993,901.52x = 20,943,451.04 × 8,605,969.44
  4. Step 4: Simplify right side
    13,993,901.52x = 180,238,699,618,376.19
  5. Step 5: Solve for x
    x = 180,238,699,618,376.19/13,993,901.52
  6. Step 6: Final answer
    x = 12,879,803.35

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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.