Home / 10,507,884.57-15,761,826.86-8,115,219.09

Finding the Fourth Proportional to 10,507,884.57, 15,761,826.86 and 8,115,219.09

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Solution

The fourth proportional to 10,507,884.57, 15,761,826.86 and 8,115,219.09 is: 12,172,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507,884.57 : 15,761,826.86 = 8,115,219.09 : x
  2. Step 2: Convert to fraction form
    10,507,884.57/15,761,826.86 = 8,115,219.09/x
  3. Step 3: Cross multiply
    10,507,884.57x = 15,761,826.86 × 8,115,219.09
  4. Step 4: Simplify right side
    10,507,884.57x = 127,910,678,186,970.66
  5. Step 5: Solve for x
    x = 127,910,678,186,970.66/10,507,884.57
  6. Step 6: Final answer
    x = 12,172,828.64

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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.