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Finding the Fourth Proportional to 163,871,687.81, 245,647,766.81 and 65,474,058.06

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Solution

The fourth proportional to 163,871,687.81, 245,647,766.81 and 65,474,058.06 is: 98,147,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,871,687.81 : 245,647,766.81 = 65,474,058.06 : x
  2. Step 2: Convert to fraction form
    163,871,687.81/245,647,766.81 = 65,474,058.06/x
  3. Step 3: Cross multiply
    163,871,687.81x = 245,647,766.81 × 65,474,058.06
  4. Step 4: Simplify right side
    163,871,687.81x = 16,083,556,146,590,966
  5. Step 5: Solve for x
    x = 16,083,556,146,590,966/163,871,687.81
  6. Step 6: Final answer
    x = 98,147,253.87

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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.