Home / 18,513,658.54-25,553,098.44-12,318,961.60

Finding the Fourth Proportional to 18,513,658.54, 25,553,098.44 and 12,318,961.60

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Solution

The fourth proportional to 18,513,658.54, 25,553,098.44 and 12,318,961.60 is: 17,002,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513,658.54 : 25,553,098.44 = 12,318,961.60 : x
  2. Step 2: Convert to fraction form
    18,513,658.54/25,553,098.44 = 12,318,961.60/x
  3. Step 3: Cross multiply
    18,513,658.54x = 25,553,098.44 × 12,318,961.60
  4. Step 4: Simplify right side
    18,513,658.54x = 314,787,638,443,379.94
  5. Step 5: Solve for x
    x = 314,787,638,443,379.94/18,513,658.54
  6. Step 6: Final answer
    x = 17,002,994.72

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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.