Home / 99,816,010.40-149,724,015.60-61,016,880.80

Finding the Fourth Proportional to 99,816,010.40, 149,724,015.60 and 61,016,880.80

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Solution

The fourth proportional to 99,816,010.40, 149,724,015.60 and 61,016,880.80 is: 91,525,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,816,010.40 : 149,724,015.60 = 61,016,880.80 : x
  2. Step 2: Convert to fraction form
    99,816,010.40/149,724,015.60 = 61,016,880.80/x
  3. Step 3: Cross multiply
    99,816,010.40x = 149,724,015.60 × 61,016,880.80
  4. Step 4: Simplify right side
    99,816,010.40x = 9,135,692,412,762,540
  5. Step 5: Solve for x
    x = 9,135,692,412,762,540/99,816,010.40
  6. Step 6: Final answer
    x = 91,525,321.20

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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.