Home / 28,651,201.30-42,882,323.55-20,148,145.30

Finding the Fourth Proportional to 28,651,201.30, 42,882,323.55 and 20,148,145.30

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Solution

The fourth proportional to 28,651,201.30, 42,882,323.55 and 20,148,145.30 is: 30,155,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651,201.30 : 42,882,323.55 = 20,148,145.30 : x
  2. Step 2: Convert to fraction form
    28,651,201.30/42,882,323.55 = 20,148,145.30/x
  3. Step 3: Cross multiply
    28,651,201.30x = 42,882,323.55 × 20,148,145.30
  4. Step 4: Simplify right side
    28,651,201.30x = 863,999,285,687,011.75
  5. Step 5: Solve for x
    x = 863,999,285,687,011.75/28,651,201.30
  6. Step 6: Final answer
    x = 30,155,778.69

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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.