Home / 81,561,617.40-122,484,143.70-43,297,865.40

Finding the Fourth Proportional to 81,561,617.40, 122,484,143.70 and 43,297,865.40

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Solution

The fourth proportional to 81,561,617.40, 122,484,143.70 and 43,297,865.40 is: 65,022,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,561,617.40 : 122,484,143.70 = 43,297,865.40 : x
  2. Step 2: Convert to fraction form
    81,561,617.40/122,484,143.70 = 43,297,865.40/x
  3. Step 3: Cross multiply
    81,561,617.40x = 122,484,143.70 × 43,297,865.40
  4. Step 4: Simplify right side
    81,561,617.40x = 5,303,301,967,556,858
  5. Step 5: Solve for x
    x = 5,303,301,967,556,858/81,561,617.40
  6. Step 6: Final answer
    x = 65,022,030.42

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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.