Home / 72,485,224.03-100,029,625.48-39,890,176.03

Finding the Fourth Proportional to 72,485,224.03, 100,029,625.48 and 39,890,176.03

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Solution

The fourth proportional to 72,485,224.03, 100,029,625.48 and 39,890,176.03 is: 55,048,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,485,224.03 : 100,029,625.48 = 39,890,176.03 : x
  2. Step 2: Convert to fraction form
    72,485,224.03/100,029,625.48 = 39,890,176.03/x
  3. Step 3: Cross multiply
    72,485,224.03x = 100,029,625.48 × 39,890,176.03
  4. Step 4: Simplify right side
    72,485,224.03x = 3,990,199,368,612,173.50
  5. Step 5: Solve for x
    x = 3,990,199,368,612,173.50/72,485,224.03
  6. Step 6: Final answer
    x = 55,048,451.90

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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.