Home / 19,715,912.34-27,169,201.89-15,074,955.78

Finding the Fourth Proportional to 19,715,912.34, 27,169,201.89 and 15,074,955.78

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Solution

The fourth proportional to 19,715,912.34, 27,169,201.89 and 15,074,955.78 is: 20,773,804.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715,912.34 : 27,169,201.89 = 15,074,955.78 : x
  2. Step 2: Convert to fraction form
    19,715,912.34/27,169,201.89 = 15,074,955.78/x
  3. Step 3: Cross multiply
    19,715,912.34x = 27,169,201.89 × 15,074,955.78
  4. Step 4: Simplify right side
    19,715,912.34x = 409,574,517,069,642.44
  5. Step 5: Solve for x
    x = 409,574,517,069,642.44/19,715,912.34
  6. Step 6: Final answer
    x = 20,773,804.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.