Home / 21,054,503.40-31,581,755.10-17,972,145.60

Finding the Fourth Proportional to 21,054,503.40, 31,581,755.10 and 17,972,145.60

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Solution

The fourth proportional to 21,054,503.40, 31,581,755.10 and 17,972,145.60 is: 26,958,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,503.40 : 31,581,755.10 = 17,972,145.60 : x
  2. Step 2: Convert to fraction form
    21,054,503.40/31,581,755.10 = 17,972,145.60/x
  3. Step 3: Cross multiply
    21,054,503.40x = 31,581,755.10 × 17,972,145.60
  4. Step 4: Simplify right side
    21,054,503.40x = 567,591,900,960,742.62
  5. Step 5: Solve for x
    x = 567,591,900,960,742.62/21,054,503.40
  6. Step 6: Final answer
    x = 26,958,218.40

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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.