Home / 28,139,922.24-42,210,610.08-7,669,809.60

Finding the Fourth Proportional to 28,139,922.24, 42,210,610.08 and 7,669,809.60

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Solution

The fourth proportional to 28,139,922.24, 42,210,610.08 and 7,669,809.60 is: 11,504,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,922.24 : 42,210,610.08 = 7,669,809.60 : x
  2. Step 2: Convert to fraction form
    28,139,922.24/42,210,610.08 = 7,669,809.60/x
  3. Step 3: Cross multiply
    28,139,922.24x = 42,210,610.08 × 7,669,809.60
  4. Step 4: Simplify right side
    28,139,922.24x = 323,747,342,413,440.75
  5. Step 5: Solve for x
    x = 323,747,342,413,440.75/28,139,922.24
  6. Step 6: Final answer
    x = 11,504,912.47

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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.