Home / 78,178,622.92-107,841,676.24-48,758,879.30

Finding the Fourth Proportional to 78,178,622.92, 107,841,676.24 and 48,758,879.30

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Solution

The fourth proportional to 78,178,622.92, 107,841,676.24 and 48,758,879.30 is: 67,259,297.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,178,622.92 : 107,841,676.24 = 48,758,879.30 : x
  2. Step 2: Convert to fraction form
    78,178,622.92/107,841,676.24 = 48,758,879.30/x
  3. Step 3: Cross multiply
    78,178,622.92x = 107,841,676.24 × 48,758,879.30
  4. Step 4: Simplify right side
    78,178,622.92x = 5,258,239,275,443,545
  5. Step 5: Solve for x
    x = 5,258,239,275,443,545/78,178,622.92
  6. Step 6: Final answer
    x = 67,259,297.74

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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.