Home / 55,738,812.66-83,618,986.05-21,192,528.30

Finding the Fourth Proportional to 55,738,812.66, 83,618,986.05 and 21,192,528.30

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Solution

The fourth proportional to 55,738,812.66, 83,618,986.05 and 21,192,528.30 is: 31,792,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,738,812.66 : 83,618,986.05 = 21,192,528.30 : x
  2. Step 2: Convert to fraction form
    55,738,812.66/83,618,986.05 = 21,192,528.30/x
  3. Step 3: Cross multiply
    55,738,812.66x = 83,618,986.05 × 21,192,528.30
  4. Step 4: Simplify right side
    55,738,812.66x = 1,772,097,728,281,930.25
  5. Step 5: Solve for x
    x = 1,772,097,728,281,930.25/55,738,812.66
  6. Step 6: Final answer
    x = 31,792,886.21

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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.