Home / 166,109,215.40-249,163,823.10-79,826,816.60

Finding the Fourth Proportional to 166,109,215.40, 249,163,823.10 and 79,826,816.60

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Solution

The fourth proportional to 166,109,215.40, 249,163,823.10 and 79,826,816.60 is: 119,740,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,109,215.40 : 249,163,823.10 = 79,826,816.60 : x
  2. Step 2: Convert to fraction form
    166,109,215.40/249,163,823.10 = 79,826,816.60/x
  3. Step 3: Cross multiply
    166,109,215.40x = 249,163,823.10 × 79,826,816.60
  4. Step 4: Simplify right side
    166,109,215.40x = 19,889,954,809,958,540
  5. Step 5: Solve for x
    x = 19,889,954,809,958,540/166,109,215.40
  6. Step 6: Final answer
    x = 119,740,224.90

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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.