Home / 76,478,344.74-105,538,786.92-41,671,321.20

Finding the Fourth Proportional to 76,478,344.74, 105,538,786.92 and 41,671,321.20

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Solution

The fourth proportional to 76,478,344.74, 105,538,786.92 and 41,671,321.20 is: 57,505,699.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,478,344.74 : 105,538,786.92 = 41,671,321.20 : x
  2. Step 2: Convert to fraction form
    76,478,344.74/105,538,786.92 = 41,671,321.20/x
  3. Step 3: Cross multiply
    76,478,344.74x = 105,538,786.92 × 41,671,321.20
  4. Step 4: Simplify right side
    76,478,344.74x = 4,397,940,688,801,679
  5. Step 5: Solve for x
    x = 4,397,940,688,801,679/76,478,344.74
  6. Step 6: Final answer
    x = 57,505,699.21

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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.