Home / 137,647,931.67-189,959,157.72-74,920,997.61

Finding the Fourth Proportional to 137,647,931.67, 189,959,157.72 and 74,920,997.61

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Solution

The fourth proportional to 137,647,931.67, 189,959,157.72 and 74,920,997.61 is: 103,393,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,647,931.67 : 189,959,157.72 = 74,920,997.61 : x
  2. Step 2: Convert to fraction form
    137,647,931.67/189,959,157.72 = 74,920,997.61/x
  3. Step 3: Cross multiply
    137,647,931.67x = 189,959,157.72 × 74,920,997.61
  4. Step 4: Simplify right side
    137,647,931.67x = 14,231,929,601,537,732
  5. Step 5: Solve for x
    x = 14,231,929,601,537,732/137,647,931.67
  6. Step 6: Final answer
    x = 103,393,704.71

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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.