Home / 72,664,855.51-100,279,922.13-39,626,912.74

Finding the Fourth Proportional to 72,664,855.51, 100,279,922.13 and 39,626,912.74

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Solution

The fourth proportional to 72,664,855.51, 100,279,922.13 and 39,626,912.74 is: 54,686,460.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,664,855.51 : 100,279,922.13 = 39,626,912.74 : x
  2. Step 2: Convert to fraction form
    72,664,855.51/100,279,922.13 = 39,626,912.74/x
  3. Step 3: Cross multiply
    72,664,855.51x = 100,279,922.13 × 39,626,912.74
  4. Step 4: Simplify right side
    72,664,855.51x = 3,973,783,723,819,505
  5. Step 5: Solve for x
    x = 3,973,783,723,819,505/72,664,855.51
  6. Step 6: Final answer
    x = 54,686,460.13

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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.