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Finding the Fourth Proportional to 12,476,562.80, 18,714,844.20 and 12,308,601.20

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Solution

The fourth proportional to 12,476,562.80, 18,714,844.20 and 12,308,601.20 is: 18,462,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,562.80 : 18,714,844.20 = 12,308,601.20 : x
  2. Step 2: Convert to fraction form
    12,476,562.80/18,714,844.20 = 12,308,601.20/x
  3. Step 3: Cross multiply
    12,476,562.80x = 18,714,844.20 × 12,308,601.20
  4. Step 4: Simplify right side
    12,476,562.80x = 230,353,553,777,933.03
  5. Step 5: Solve for x
    x = 230,353,553,777,933.03/12,476,562.80
  6. Step 6: Final answer
    x = 18,462,901.80

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1.5x scale

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.