Home / 28,030,516.80-42,010,345.80-13,622,560.80

Finding the Fourth Proportional to 28,030,516.80, 42,010,345.80 and 13,622,560.80

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Solution

The fourth proportional to 28,030,516.80, 42,010,345.80 and 13,622,560.80 is: 20,416,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030,516.80 : 42,010,345.80 = 13,622,560.80 : x
  2. Step 2: Convert to fraction form
    28,030,516.80/42,010,345.80 = 13,622,560.80/x
  3. Step 3: Cross multiply
    28,030,516.80x = 42,010,345.80 × 13,622,560.80
  4. Step 4: Simplify right side
    28,030,516.80x = 572,288,489,889,524.62
  5. Step 5: Solve for x
    x = 572,288,489,889,524.62/28,030,516.80
  6. Step 6: Final answer
    x = 20,416,622.85

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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.