Home / 71,109,804.29-98,139,493.88-40,171,966.48

Finding the Fourth Proportional to 71,109,804.29, 98,139,493.88 and 40,171,966.48

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Solution

The fourth proportional to 71,109,804.29, 98,139,493.88 and 40,171,966.48 is: 55,441,812.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,109,804.29 : 98,139,493.88 = 40,171,966.48 : x
  2. Step 2: Convert to fraction form
    71,109,804.29/98,139,493.88 = 40,171,966.48/x
  3. Step 3: Cross multiply
    71,109,804.29x = 98,139,493.88 × 40,171,966.48
  4. Step 4: Simplify right side
    71,109,804.29x = 3,942,456,458,366,606
  5. Step 5: Solve for x
    x = 3,942,456,458,366,606/71,109,804.29
  6. Step 6: Final answer
    x = 55,441,812.81

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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.