Home / 140,864,791.80-211,297,187.70-86,445,233.40

Finding the Fourth Proportional to 140,864,791.80, 211,297,187.70 and 86,445,233.40

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Solution

The fourth proportional to 140,864,791.80, 211,297,187.70 and 86,445,233.40 is: 129,667,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,864,791.80 : 211,297,187.70 = 86,445,233.40 : x
  2. Step 2: Convert to fraction form
    140,864,791.80/211,297,187.70 = 86,445,233.40/x
  3. Step 3: Cross multiply
    140,864,791.80x = 211,297,187.70 × 86,445,233.40
  4. Step 4: Simplify right side
    140,864,791.80x = 18,265,634,707,490,108
  5. Step 5: Solve for x
    x = 18,265,634,707,490,108/140,864,791.80
  6. Step 6: Final answer
    x = 129,667,850.10

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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.