Home / 74,892,939.20-112,339,408.80-61,288,049.60

Finding the Fourth Proportional to 74,892,939.20, 112,339,408.80 and 61,288,049.60

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Solution

The fourth proportional to 74,892,939.20, 112,339,408.80 and 61,288,049.60 is: 91,932,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,892,939.20 : 112,339,408.80 = 61,288,049.60 : x
  2. Step 2: Convert to fraction form
    74,892,939.20/112,339,408.80 = 61,288,049.60/x
  3. Step 3: Cross multiply
    74,892,939.20x = 112,339,408.80 × 61,288,049.60
  4. Step 4: Simplify right side
    74,892,939.20x = 6,885,063,258,569,076
  5. Step 5: Solve for x
    x = 6,885,063,258,569,076/74,892,939.20
  6. Step 6: Final answer
    x = 91,932,074.40

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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.