Home / 103,731,072.72-155,603,244.92-39,905,664.72

Finding the Fourth Proportional to 103,731,072.72, 155,603,244.92 and 39,905,664.72

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Solution

The fourth proportional to 103,731,072.72, 155,603,244.92 and 39,905,664.72 is: 59,861,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,731,072.72 : 155,603,244.92 = 39,905,664.72 : x
  2. Step 2: Convert to fraction form
    103,731,072.72/155,603,244.92 = 39,905,664.72/x
  3. Step 3: Cross multiply
    103,731,072.72x = 155,603,244.92 × 39,905,664.72
  4. Step 4: Simplify right side
    103,731,072.72x = 6,209,450,921,121,563
  5. Step 5: Solve for x
    x = 6,209,450,921,121,563/103,731,072.72
  6. Step 6: Final answer
    x = 59,861,049.91

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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.