Home / 81,576,272.70-122,364,409.05-74,144,490.30

Finding the Fourth Proportional to 81,576,272.70, 122,364,409.05 and 74,144,490.30

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Solution

The fourth proportional to 81,576,272.70, 122,364,409.05 and 74,144,490.30 is: 111,216,735.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576,272.70 : 122,364,409.05 = 74,144,490.30 : x
  2. Step 2: Convert to fraction form
    81,576,272.70/122,364,409.05 = 74,144,490.30/x
  3. Step 3: Cross multiply
    81,576,272.70x = 122,364,409.05 × 74,144,490.30
  4. Step 4: Simplify right side
    81,576,272.70x = 9,072,646,739,872,956
  5. Step 5: Solve for x
    x = 9,072,646,739,872,956/81,576,272.70
  6. Step 6: Final answer
    x = 111,216,735.45

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Double scale
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Similar ratio
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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.