Home / 55,156,629.69-76,115,220.33-30,379,123.89

Finding the Fourth Proportional to 55,156,629.69, 76,115,220.33 and 30,379,123.89

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Solution

The fourth proportional to 55,156,629.69, 76,115,220.33 and 30,379,123.89 is: 41,922,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,156,629.69 : 76,115,220.33 = 30,379,123.89 : x
  2. Step 2: Convert to fraction form
    55,156,629.69/76,115,220.33 = 30,379,123.89/x
  3. Step 3: Cross multiply
    55,156,629.69x = 76,115,220.33 × 30,379,123.89
  4. Step 4: Simplify right side
    55,156,629.69x = 2,312,313,708,319,716.50
  5. Step 5: Solve for x
    x = 2,312,313,708,319,716.50/55,156,629.69
  6. Step 6: Final answer
    x = 41,922,679.49

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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.