Home / 12,808,840.23-19,213,236.45-4,172,930.87

Finding the Fourth Proportional to 12,808,840.23, 19,213,236.45 and 4,172,930.87

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Solution

The fourth proportional to 12,808,840.23, 19,213,236.45 and 4,172,930.87 is: 6,259,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808,840.23 : 19,213,236.45 = 4,172,930.87 : x
  2. Step 2: Convert to fraction form
    12,808,840.23/19,213,236.45 = 4,172,930.87/x
  3. Step 3: Cross multiply
    12,808,840.23x = 19,213,236.45 × 4,172,930.87
  4. Step 4: Simplify right side
    12,808,840.23x = 80,175,507,398,748.03
  5. Step 5: Solve for x
    x = 80,175,507,398,748.03/12,808,840.23
  6. Step 6: Final answer
    x = 6,259,388.51

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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.