Home / 103,431,916.30-155,147,874.45-45,863,077.90

Finding the Fourth Proportional to 103,431,916.30, 155,147,874.45 and 45,863,077.90

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Solution

The fourth proportional to 103,431,916.30, 155,147,874.45 and 45,863,077.90 is: 68,794,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,431,916.30 : 155,147,874.45 = 45,863,077.90 : x
  2. Step 2: Convert to fraction form
    103,431,916.30/155,147,874.45 = 45,863,077.90/x
  3. Step 3: Cross multiply
    103,431,916.30x = 155,147,874.45 × 45,863,077.90
  4. Step 4: Simplify right side
    103,431,916.30x = 7,115,559,051,919,769
  5. Step 5: Solve for x
    x = 7,115,559,051,919,769/103,431,916.30
  6. Step 6: Final answer
    x = 68,794,616.85

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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.