Home / 120,514,578.89-166,311,941.10-67,603,015.51

Finding the Fourth Proportional to 120,514,578.89, 166,311,941.10 and 67,603,015.51

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Solution

The fourth proportional to 120,514,578.89, 166,311,941.10 and 67,603,015.51 is: 93,293,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,514,578.89 : 166,311,941.10 = 67,603,015.51 : x
  2. Step 2: Convert to fraction form
    120,514,578.89/166,311,941.10 = 67,603,015.51/x
  3. Step 3: Cross multiply
    120,514,578.89x = 166,311,941.10 × 67,603,015.51
  4. Step 4: Simplify right side
    120,514,578.89x = 11,243,188,733,681,506
  5. Step 5: Solve for x
    x = 11,243,188,733,681,506/120,514,578.89
  6. Step 6: Final answer
    x = 93,293,183.59

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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.