Home / 78,347,485.53-108,005,572.85-54,752,766.08

Finding the Fourth Proportional to 78,347,485.53, 108,005,572.85 and 54,752,766.08

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Solution

The fourth proportional to 78,347,485.53, 108,005,572.85 and 54,752,766.08 is: 75,479,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,347,485.53 : 108,005,572.85 = 54,752,766.08 : x
  2. Step 2: Convert to fraction form
    78,347,485.53/108,005,572.85 = 54,752,766.08/x
  3. Step 3: Cross multiply
    78,347,485.53x = 108,005,572.85 × 54,752,766.08
  4. Step 4: Simplify right side
    78,347,485.53x = 5,913,603,864,855,311
  5. Step 5: Solve for x
    x = 5,913,603,864,855,311/78,347,485.53
  6. Step 6: Final answer
    x = 75,479,178.75

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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.