Home / 81,576,337.20-122,364,505.80-74,144,554.80

Finding the Fourth Proportional to 81,576,337.20, 122,364,505.80 and 74,144,554.80

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Solution

The fourth proportional to 81,576,337.20, 122,364,505.80 and 74,144,554.80 is: 111,216,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576,337.20 : 122,364,505.80 = 74,144,554.80 : x
  2. Step 2: Convert to fraction form
    81,576,337.20/122,364,505.80 = 74,144,554.80/x
  3. Step 3: Cross multiply
    81,576,337.20x = 122,364,505.80 × 74,144,554.80
  4. Step 4: Simplify right side
    81,576,337.20x = 9,072,661,805,863,018
  5. Step 5: Solve for x
    x = 9,072,661,805,863,018/81,576,337.20
  6. Step 6: Final answer
    x = 111,216,832.20

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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.