Home / 120,603,198.51-166,387,327.34-71,013,265.11

Finding the Fourth Proportional to 120,603,198.51, 166,387,327.34 and 71,013,265.11

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Solution

The fourth proportional to 120,603,198.51, 166,387,327.34 and 71,013,265.11 is: 97,971,758.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,603,198.51 : 166,387,327.34 = 71,013,265.11 : x
  2. Step 2: Convert to fraction form
    120,603,198.51/166,387,327.34 = 71,013,265.11/x
  3. Step 3: Cross multiply
    120,603,198.51x = 166,387,327.34 × 71,013,265.11
  4. Step 4: Simplify right side
    120,603,198.51x = 11,815,707,386,984,706
  5. Step 5: Solve for x
    x = 11,815,707,386,984,706/120,603,198.51
  6. Step 6: Final answer
    x = 97,971,758.07

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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.