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Finding the Fourth Proportional to 17,804,430.60, 26,706,645.90 and 12,419,161.80

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Solution

The fourth proportional to 17,804,430.60, 26,706,645.90 and 12,419,161.80 is: 18,628,742.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,804,430.60 : 26,706,645.90 = 12,419,161.80 : x
  2. Step 2: Convert to fraction form
    17,804,430.60/26,706,645.90 = 12,419,161.80/x
  3. Step 3: Cross multiply
    17,804,430.60x = 26,706,645.90 × 12,419,161.80
  4. Step 4: Simplify right side
    17,804,430.60x = 331,674,156,567,406.62
  5. Step 5: Solve for x
    x = 331,674,156,567,406.62/17,804,430.60
  6. Step 6: Final answer
    x = 18,628,742.70

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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.