Home / 85,375,232.78-127,991,086.40-69,160,974.62

Finding the Fourth Proportional to 85,375,232.78, 127,991,086.40 and 69,160,974.62

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Solution

The fourth proportional to 85,375,232.78, 127,991,086.40 and 69,160,974.62 is: 103,683,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,375,232.78 : 127,991,086.40 = 69,160,974.62 : x
  2. Step 2: Convert to fraction form
    85,375,232.78/127,991,086.40 = 69,160,974.62/x
  3. Step 3: Cross multiply
    85,375,232.78x = 127,991,086.40 × 69,160,974.62
  4. Step 4: Simplify right side
    85,375,232.78x = 8,851,988,277,629,574
  5. Step 5: Solve for x
    x = 8,851,988,277,629,574/85,375,232.78
  6. Step 6: Final answer
    x = 103,683,328.17

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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.