Home / 30,881,072.50-46,321,610.19-21,156,095.86

Finding the Fourth Proportional to 30,881,072.50, 46,321,610.19 and 21,156,095.86

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Solution

The fourth proportional to 30,881,072.50, 46,321,610.19 and 21,156,095.86 is: 31,734,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881,072.50 : 46,321,610.19 = 21,156,095.86 : x
  2. Step 2: Convert to fraction form
    30,881,072.50/46,321,610.19 = 21,156,095.86/x
  3. Step 3: Cross multiply
    30,881,072.50x = 46,321,610.19 × 21,156,095.86
  4. Step 4: Simplify right side
    30,881,072.50x = 979,984,425,569,192.75
  5. Step 5: Solve for x
    x = 979,984,425,569,192.75/30,881,072.50
  6. Step 6: Final answer
    x = 31,734,144.78

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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.