Home / 166,108,520.40-249,162,780.60-79,826,121.60

Finding the Fourth Proportional to 166,108,520.40, 249,162,780.60 and 79,826,121.60

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Solution

The fourth proportional to 166,108,520.40, 249,162,780.60 and 79,826,121.60 is: 119,739,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,108,520.40 : 249,162,780.60 = 79,826,121.60 : x
  2. Step 2: Convert to fraction form
    166,108,520.40/249,162,780.60 = 79,826,121.60/x
  3. Step 3: Cross multiply
    166,108,520.40x = 249,162,780.60 × 79,826,121.60
  4. Step 4: Simplify right side
    166,108,520.40x = 19,889,698,422,369,720
  5. Step 5: Solve for x
    x = 19,889,698,422,369,720/166,108,520.40
  6. Step 6: Final answer
    x = 119,739,182.40

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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.