Home / 72,997,408.18-100,736,454.82-39,957,845.74

Finding the Fourth Proportional to 72,997,408.18, 100,736,454.82 and 39,957,845.74

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Solution

The fourth proportional to 72,997,408.18, 100,736,454.82 and 39,957,845.74 is: 55,141,844.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,997,408.18 : 100,736,454.82 = 39,957,845.74 : x
  2. Step 2: Convert to fraction form
    72,997,408.18/100,736,454.82 = 39,957,845.74/x
  3. Step 3: Cross multiply
    72,997,408.18x = 100,736,454.82 × 39,957,845.74
  4. Step 4: Simplify right side
    72,997,408.18x = 4,025,211,722,092,039.50
  5. Step 5: Solve for x
    x = 4,025,211,722,092,039.50/72,997,408.18
  6. Step 6: Final answer
    x = 55,141,844.38

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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.