Home / 78,796,721.25-108,768,492.14-47,436,227.93

Finding the Fourth Proportional to 78,796,721.25, 108,768,492.14 and 47,436,227.93

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Solution

The fourth proportional to 78,796,721.25, 108,768,492.14 and 47,436,227.93 is: 65,479,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,796,721.25 : 108,768,492.14 = 47,436,227.93 : x
  2. Step 2: Convert to fraction form
    78,796,721.25/108,768,492.14 = 47,436,227.93/x
  3. Step 3: Cross multiply
    78,796,721.25x = 108,768,492.14 × 47,436,227.93
  4. Step 4: Simplify right side
    78,796,721.25x = 5,159,566,984,790,194
  5. Step 5: Solve for x
    x = 5,159,566,984,790,194/78,796,721.25
  6. Step 6: Final answer
    x = 65,479,462.89

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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.