Home / 72,874,845.69-100,567,291.68-39,835,225.54

Finding the Fourth Proportional to 72,874,845.69, 100,567,291.68 and 39,835,225.54

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Solution

The fourth proportional to 72,874,845.69, 100,567,291.68 and 39,835,225.54 is: 54,972,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,874,845.69 : 100,567,291.68 = 39,835,225.54 : x
  2. Step 2: Convert to fraction form
    72,874,845.69/100,567,291.68 = 39,835,225.54/x
  3. Step 3: Cross multiply
    72,874,845.69x = 100,567,291.68 × 39,835,225.54
  4. Step 4: Simplify right side
    72,874,845.69x = 4,006,120,746,019,765.50
  5. Step 5: Solve for x
    x = 4,006,120,746,019,765.50/72,874,845.69
  6. Step 6: Final answer
    x = 54,972,613.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.