Home / 12,569,185.70-18,853,658.08-7,447,929.15

Finding the Fourth Proportional to 12,569,185.70, 18,853,658.08 and 7,447,929.15

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Solution

The fourth proportional to 12,569,185.70, 18,853,658.08 and 7,447,929.15 is: 11,171,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,569,185.70 : 18,853,658.08 = 7,447,929.15 : x
  2. Step 2: Convert to fraction form
    12,569,185.70/18,853,658.08 = 7,447,929.15/x
  3. Step 3: Cross multiply
    12,569,185.70x = 18,853,658.08 × 7,447,929.15
  4. Step 4: Simplify right side
    12,569,185.70x = 140,420,709,546,083.64
  5. Step 5: Solve for x
    x = 140,420,709,546,083.64/12,569,185.70
  6. Step 6: Final answer
    x = 11,171,822.33

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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.