Home / 12,589,863.40-18,884,795.10-11,101,828.60

Finding the Fourth Proportional to 12,589,863.40, 18,884,795.10 and 11,101,828.60

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Solution

The fourth proportional to 12,589,863.40, 18,884,795.10 and 11,101,828.60 is: 16,652,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,863.40 : 18,884,795.10 = 11,101,828.60 : x
  2. Step 2: Convert to fraction form
    12,589,863.40/18,884,795.10 = 11,101,828.60/x
  3. Step 3: Cross multiply
    12,589,863.40x = 18,884,795.10 × 11,101,828.60
  4. Step 4: Simplify right side
    12,589,863.40x = 209,655,758,346,319.88
  5. Step 5: Solve for x
    x = 209,655,758,346,319.88/12,589,863.40
  6. Step 6: Final answer
    x = 16,652,742.90

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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.