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Finding the Fourth Proportional to 12,374,687.52, 18,562,925.52 and 5,178,981.24

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Solution

The fourth proportional to 12,374,687.52, 18,562,925.52 and 5,178,981.24 is: 7,768,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374,687.52 : 18,562,925.52 = 5,178,981.24 : x
  2. Step 2: Convert to fraction form
    12,374,687.52/18,562,925.52 = 5,178,981.24/x
  3. Step 3: Cross multiply
    12,374,687.52x = 18,562,925.52 × 5,178,981.24
  4. Step 4: Simplify right side
    12,374,687.52x = 96,137,043,027,597.25
  5. Step 5: Solve for x
    x = 96,137,043,027,597.25/12,374,687.52
  6. Step 6: Final answer
    x = 7,768,846.11

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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.