Home / 72,768,383.55-100,418,834.77-39,727,035.83

Finding the Fourth Proportional to 72,768,383.55, 100,418,834.77 and 39,727,035.83

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Solution

The fourth proportional to 72,768,383.55, 100,418,834.77 and 39,727,035.83 is: 54,822,471.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,383.55 : 100,418,834.77 = 39,727,035.83 : x
  2. Step 2: Convert to fraction form
    72,768,383.55/100,418,834.77 = 39,727,035.83/x
  3. Step 3: Cross multiply
    72,768,383.55x = 100,418,834.77 × 39,727,035.83
  4. Step 4: Simplify right side
    72,768,383.55x = 3,989,342,646,815,322
  5. Step 5: Solve for x
    x = 3,989,342,646,815,322/72,768,383.55
  6. Step 6: Final answer
    x = 54,822,471.68

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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.