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Finding the Fourth Proportional to 17,355,692.40, 26,008,655.40 and 12,770,962.80

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Solution

The fourth proportional to 17,355,692.40, 26,008,655.40 and 12,770,962.80 is: 19,138,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,355,692.40 : 26,008,655.40 = 12,770,962.80 : x
  2. Step 2: Convert to fraction form
    17,355,692.40/26,008,655.40 = 12,770,962.80/x
  3. Step 3: Cross multiply
    17,355,692.40x = 26,008,655.40 × 12,770,962.80
  4. Step 4: Simplify right side
    17,355,692.40x = 332,155,570,591,419.12
  5. Step 5: Solve for x
    x = 332,155,570,591,419.12/17,355,692.40
  6. Step 6: Final answer
    x = 19,138,134.22

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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.