Home / 76,121,505.86-105,047,781.92-41,314,196.78

Finding the Fourth Proportional to 76,121,505.86, 105,047,781.92 and 41,314,196.78

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Solution

The fourth proportional to 76,121,505.86, 105,047,781.92 and 41,314,196.78 is: 57,013,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,121,505.86 : 105,047,781.92 = 41,314,196.78 : x
  2. Step 2: Convert to fraction form
    76,121,505.86/105,047,781.92 = 41,314,196.78/x
  3. Step 3: Cross multiply
    76,121,505.86x = 105,047,781.92 × 41,314,196.78
  4. Step 4: Simplify right side
    76,121,505.86x = 4,339,964,733,545,406.50
  5. Step 5: Solve for x
    x = 4,339,964,733,545,406.50/76,121,505.86
  6. Step 6: Final answer
    x = 57,013,647.91

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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.