Home / 120,231,137.92-165,919,291.93-65,226,994.42

Finding the Fourth Proportional to 120,231,137.92, 165,919,291.93 and 65,226,994.42

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Solution

The fourth proportional to 120,231,137.92, 165,919,291.93 and 65,226,994.42 is: 90,013,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,231,137.92 : 165,919,291.93 = 65,226,994.42 : x
  2. Step 2: Convert to fraction form
    120,231,137.92/165,919,291.93 = 65,226,994.42/x
  3. Step 3: Cross multiply
    120,231,137.92x = 165,919,291.93 × 65,226,994.42
  4. Step 4: Simplify right side
    120,231,137.92x = 10,822,416,728,888,462
  5. Step 5: Solve for x
    x = 10,822,416,728,888,462/120,231,137.92
  6. Step 6: Final answer
    x = 90,013,426.77

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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.