Home / 138,266,743.64-207,265,313.78-55,243,743.52

Finding the Fourth Proportional to 138,266,743.64, 207,265,313.78 and 55,243,743.52

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Solution

The fourth proportional to 138,266,743.64, 207,265,313.78 and 55,243,743.52 is: 82,811,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,266,743.64 : 207,265,313.78 = 55,243,743.52 : x
  2. Step 2: Convert to fraction form
    138,266,743.64/207,265,313.78 = 55,243,743.52/x
  3. Step 3: Cross multiply
    138,266,743.64x = 207,265,313.78 × 55,243,743.52
  4. Step 4: Simplify right side
    138,266,743.64x = 11,450,111,835,054,642
  5. Step 5: Solve for x
    x = 11,450,111,835,054,642/138,266,743.64
  6. Step 6: Final answer
    x = 82,811,755.98

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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.