Home / 149,962,846.77-206,865,446.54-87,231,878.37

Finding the Fourth Proportional to 149,962,846.77, 206,865,446.54 and 87,231,878.37

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Solution

The fourth proportional to 149,962,846.77, 206,865,446.54 and 87,231,878.37 is: 120,331,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,962,846.77 : 206,865,446.54 = 87,231,878.37 : x
  2. Step 2: Convert to fraction form
    149,962,846.77/206,865,446.54 = 87,231,878.37/x
  3. Step 3: Cross multiply
    149,962,846.77x = 206,865,446.54 × 87,231,878.37
  4. Step 4: Simplify right side
    149,962,846.77x = 18,045,261,471,096,860
  5. Step 5: Solve for x
    x = 18,045,261,471,096,860/149,962,846.77
  6. Step 6: Final answer
    x = 120,331,547.85

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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.