Home / 155,047,183.66-213,974,644.44-85,432,546.12

Finding the Fourth Proportional to 155,047,183.66, 213,974,644.44 and 85,432,546.12

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Solution

The fourth proportional to 155,047,183.66, 213,974,644.44 and 85,432,546.12 is: 117,902,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,047,183.66 : 213,974,644.44 = 85,432,546.12 : x
  2. Step 2: Convert to fraction form
    155,047,183.66/213,974,644.44 = 85,432,546.12/x
  3. Step 3: Cross multiply
    155,047,183.66x = 213,974,644.44 × 85,432,546.12
  4. Step 4: Simplify right side
    155,047,183.66x = 18,280,398,679,630,904
  5. Step 5: Solve for x
    x = 18,280,398,679,630,904/155,047,183.66
  6. Step 6: Final answer
    x = 117,902,165.32

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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.