Home / 57,991,110.40-86,986,665.60-38,880,812.80

Finding the Fourth Proportional to 57,991,110.40, 86,986,665.60 and 38,880,812.80

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Solution

The fourth proportional to 57,991,110.40, 86,986,665.60 and 38,880,812.80 is: 58,321,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,991,110.40 : 86,986,665.60 = 38,880,812.80 : x
  2. Step 2: Convert to fraction form
    57,991,110.40/86,986,665.60 = 38,880,812.80/x
  3. Step 3: Cross multiply
    57,991,110.40x = 86,986,665.60 × 38,880,812.80
  4. Step 4: Simplify right side
    57,991,110.40x = 3,382,112,261,289,799
  5. Step 5: Solve for x
    x = 3,382,112,261,289,799/57,991,110.40
  6. Step 6: Final answer
    x = 58,321,219.20

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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.