Home / 28,025,920.80-42,034,944.60-8,858,615.40

Finding the Fourth Proportional to 28,025,920.80, 42,034,944.60 and 8,858,615.40

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Solution

The fourth proportional to 28,025,920.80, 42,034,944.60 and 8,858,615.40 is: 13,286,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,920.80 : 42,034,944.60 = 8,858,615.40 : x
  2. Step 2: Convert to fraction form
    28,025,920.80/42,034,944.60 = 8,858,615.40/x
  3. Step 3: Cross multiply
    28,025,920.80x = 42,034,944.60 × 8,858,615.40
  4. Step 4: Simplify right side
    28,025,920.80x = 372,371,407,571,706.88
  5. Step 5: Solve for x
    x = 372,371,407,571,706.88/28,025,920.80
  6. Step 6: Final answer
    x = 13,286,678.79

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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.