Home / 71,901,167.45-107,852,538.51-20,783,629.13

Finding the Fourth Proportional to 71,901,167.45, 107,852,538.51 and 20,783,629.13

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Solution

The fourth proportional to 71,901,167.45, 107,852,538.51 and 20,783,629.13 is: 31,175,671.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,901,167.45 : 107,852,538.51 = 20,783,629.13 : x
  2. Step 2: Convert to fraction form
    71,901,167.45/107,852,538.51 = 20,783,629.13/x
  3. Step 3: Cross multiply
    71,901,167.45x = 107,852,538.51 × 20,783,629.13
  4. Step 4: Simplify right side
    71,901,167.45x = 2,241,567,160,581,620.25
  5. Step 5: Solve for x
    x = 2,241,567,160,581,620.25/71,901,167.45
  6. Step 6: Final answer
    x = 31,175,671.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.