Home / 78,888,530.99-108,876,987.54-45,397,321.77

Finding the Fourth Proportional to 78,888,530.99, 108,876,987.54 and 45,397,321.77

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Solution

The fourth proportional to 78,888,530.99, 108,876,987.54 and 45,397,321.77 is: 62,654,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888,530.99 : 108,876,987.54 = 45,397,321.77 : x
  2. Step 2: Convert to fraction form
    78,888,530.99/108,876,987.54 = 45,397,321.77/x
  3. Step 3: Cross multiply
    78,888,530.99x = 108,876,987.54 × 45,397,321.77
  4. Step 4: Simplify right side
    78,888,530.99x = 4,942,723,636,293,372
  5. Step 5: Solve for x
    x = 4,942,723,636,293,372/78,888,530.99
  6. Step 6: Final answer
    x = 62,654,527.53

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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.