Home / 87,179,111.20-120,307,174.32-48,020,767.12

Finding the Fourth Proportional to 87,179,111.20, 120,307,174.32 and 48,020,767.12

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Solution

The fourth proportional to 87,179,111.20, 120,307,174.32 and 48,020,767.12 is: 66,268,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179,111.20 : 120,307,174.32 = 48,020,767.12 : x
  2. Step 2: Convert to fraction form
    87,179,111.20/120,307,174.32 = 48,020,767.12/x
  3. Step 3: Cross multiply
    87,179,111.20x = 120,307,174.32 × 48,020,767.12
  4. Step 4: Simplify right side
    87,179,111.20x = 5,777,242,800,885,964
  5. Step 5: Solve for x
    x = 5,777,242,800,885,964/87,179,111.20
  6. Step 6: Final answer
    x = 66,268,659.10

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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.