Home / 280,166,942.80-420,250,414.20-118,923,806.80

Finding the Fourth Proportional to 280,166,942.80, 420,250,414.20 and 118,923,806.80

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Solution

The fourth proportional to 280,166,942.80, 420,250,414.20 and 118,923,806.80 is: 178,385,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,166,942.80 : 420,250,414.20 = 118,923,806.80 : x
  2. Step 2: Convert to fraction form
    280,166,942.80/420,250,414.20 = 118,923,806.80/x
  3. Step 3: Cross multiply
    280,166,942.80x = 420,250,414.20 × 118,923,806.80
  4. Step 4: Simplify right side
    280,166,942.80x = 49,977,779,065,940,776
  5. Step 5: Solve for x
    x = 49,977,779,065,940,776/280,166,942.80
  6. Step 6: Final answer
    x = 178,385,710.20

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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.