Home / 12,856,678.10-19,171,426.95-12,741,282.26

Finding the Fourth Proportional to 12,856,678.10, 19,171,426.95 and 12,741,282.26

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Solution

The fourth proportional to 12,856,678.10, 19,171,426.95 and 12,741,282.26 is: 18,999,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856,678.10 : 19,171,426.95 = 12,741,282.26 : x
  2. Step 2: Convert to fraction form
    12,856,678.10/19,171,426.95 = 12,741,282.26/x
  3. Step 3: Cross multiply
    12,856,678.10x = 19,171,426.95 × 12,741,282.26
  4. Step 4: Simplify right side
    12,856,678.10x = 244,268,562,033,214.50
  5. Step 5: Solve for x
    x = 244,268,562,033,214.50/12,856,678.10
  6. Step 6: Final answer
    x = 18,999,352.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.