Home / 86,016,989.96-118,703,394.42-47,385,821.96

Finding the Fourth Proportional to 86,016,989.96, 118,703,394.42 and 47,385,821.96

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Solution

The fourth proportional to 86,016,989.96, 118,703,394.42 and 47,385,821.96 is: 65,392,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,016,989.96 : 118,703,394.42 = 47,385,821.96 : x
  2. Step 2: Convert to fraction form
    86,016,989.96/118,703,394.42 = 47,385,821.96/x
  3. Step 3: Cross multiply
    86,016,989.96x = 118,703,394.42 × 47,385,821.96
  4. Step 4: Simplify right side
    86,016,989.96x = 5,624,857,914,033,778
  5. Step 5: Solve for x
    x = 5,624,857,914,033,778/86,016,989.96
  6. Step 6: Final answer
    x = 65,392,405.81

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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.