Home / 38,478,064.82-53,099,780.66-20,836,997.81

Finding the Fourth Proportional to 38,478,064.82, 53,099,780.66 and 20,836,997.81

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Solution

The fourth proportional to 38,478,064.82, 53,099,780.66 and 20,836,997.81 is: 28,755,084.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,064.82 : 53,099,780.66 = 20,836,997.81 : x
  2. Step 2: Convert to fraction form
    38,478,064.82/53,099,780.66 = 20,836,997.81/x
  3. Step 3: Cross multiply
    38,478,064.82x = 53,099,780.66 × 20,836,997.81
  4. Step 4: Simplify right side
    38,478,064.82x = 1,106,440,013,323,900.25
  5. Step 5: Solve for x
    x = 1,106,440,013,323,900.25/38,478,064.82
  6. Step 6: Final answer
    x = 28,755,084.71

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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.