Home / 72,117,071.20-99,517,855.44-41,171,195.68

Finding the Fourth Proportional to 72,117,071.20, 99,517,855.44 and 41,171,195.68

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Solution

The fourth proportional to 72,117,071.20, 99,517,855.44 and 41,171,195.68 is: 56,814,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,117,071.20 : 99,517,855.44 = 41,171,195.68 : x
  2. Step 2: Convert to fraction form
    72,117,071.20/99,517,855.44 = 41,171,195.68/x
  3. Step 3: Cross multiply
    72,117,071.20x = 99,517,855.44 × 41,171,195.68
  4. Step 4: Simplify right side
    72,117,071.20x = 4,097,269,099,974,192.50
  5. Step 5: Solve for x
    x = 4,097,269,099,974,192.50/72,117,071.20
  6. Step 6: Final answer
    x = 56,814,136.12

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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.