Home / 166,419,228.80-249,529,310.40-85,797,660.80

Finding the Fourth Proportional to 166,419,228.80, 249,529,310.40 and 85,797,660.80

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Solution

The fourth proportional to 166,419,228.80, 249,529,310.40 and 85,797,660.80 is: 128,645,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,419,228.80 : 249,529,310.40 = 85,797,660.80 : x
  2. Step 2: Convert to fraction form
    166,419,228.80/249,529,310.40 = 85,797,660.80/x
  3. Step 3: Cross multiply
    166,419,228.80x = 249,529,310.40 × 85,797,660.80
  4. Step 4: Simplify right side
    166,419,228.80x = 21,409,031,133,357,112
  5. Step 5: Solve for x
    x = 21,409,031,133,357,112/166,419,228.80
  6. Step 6: Final answer
    x = 128,645,176.93

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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.