Home / 12,115,260.30-18,172,890.45-8,714,037.90

Finding the Fourth Proportional to 12,115,260.30, 18,172,890.45 and 8,714,037.90

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Solution

The fourth proportional to 12,115,260.30, 18,172,890.45 and 8,714,037.90 is: 13,071,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,260.30 : 18,172,890.45 = 8,714,037.90 : x
  2. Step 2: Convert to fraction form
    12,115,260.30/18,172,890.45 = 8,714,037.90/x
  3. Step 3: Cross multiply
    12,115,260.30x = 18,172,890.45 × 8,714,037.90
  4. Step 4: Simplify right side
    12,115,260.30x = 158,359,256,133,848.06
  5. Step 5: Solve for x
    x = 158,359,256,133,848.06/12,115,260.30
  6. Step 6: Final answer
    x = 13,071,056.85

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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.