Home / 218,740,395.69-301,855,774.08-120,951,908.01

Finding the Fourth Proportional to 218,740,395.69, 301,855,774.08 and 120,951,908.01

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Solution

The fourth proportional to 218,740,395.69, 301,855,774.08 and 120,951,908.01 is: 166,910,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,740,395.69 : 301,855,774.08 = 120,951,908.01 : x
  2. Step 2: Convert to fraction form
    218,740,395.69/301,855,774.08 = 120,951,908.01/x
  3. Step 3: Cross multiply
    218,740,395.69x = 301,855,774.08 × 120,951,908.01
  4. Step 4: Simplify right side
    218,740,395.69x = 36,510,031,820,397,032
  5. Step 5: Solve for x
    x = 36,510,031,820,397,032/218,740,395.69
  6. Step 6: Final answer
    x = 166,910,330.87

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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.