Home / 72,485,223.03-100,029,624.10-39,890,175.03

Finding the Fourth Proportional to 72,485,223.03, 100,029,624.10 and 39,890,175.03

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Solution

The fourth proportional to 72,485,223.03, 100,029,624.10 and 39,890,175.03 is: 55,048,450.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,485,223.03 : 100,029,624.10 = 39,890,175.03 : x
  2. Step 2: Convert to fraction form
    72,485,223.03/100,029,624.10 = 39,890,175.03/x
  3. Step 3: Cross multiply
    72,485,223.03x = 100,029,624.10 × 39,890,175.03
  4. Step 4: Simplify right side
    72,485,223.03x = 3,990,199,213,434,381
  5. Step 5: Solve for x
    x = 3,990,199,213,434,381/72,485,223.03
  6. Step 6: Final answer
    x = 55,048,450.52

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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.