Home / 155,958,080.34-215,221,361.48-85,392,408.44

Finding the Fourth Proportional to 155,958,080.34, 215,221,361.48 and 85,392,408.44

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Solution

The fourth proportional to 155,958,080.34, 215,221,361.48 and 85,392,408.44 is: 117,841,091.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,958,080.34 : 215,221,361.48 = 85,392,408.44 : x
  2. Step 2: Convert to fraction form
    155,958,080.34/215,221,361.48 = 85,392,408.44/x
  3. Step 3: Cross multiply
    155,958,080.34x = 215,221,361.48 × 85,392,408.44
  4. Step 4: Simplify right side
    155,958,080.34x = 18,378,270,404,513,040
  5. Step 5: Solve for x
    x = 18,378,270,404,513,040/155,958,080.34
  6. Step 6: Final answer
    x = 117,841,091.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.