Home / 78,796,729.51-108,768,503.46-47,436,236.13

Finding the Fourth Proportional to 78,796,729.51, 108,768,503.46 and 47,436,236.13

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Solution

The fourth proportional to 78,796,729.51, 108,768,503.46 and 47,436,236.13 is: 65,479,474.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,796,729.51 : 108,768,503.46 = 47,436,236.13 : x
  2. Step 2: Convert to fraction form
    78,796,729.51/108,768,503.46 = 47,436,236.13/x
  3. Step 3: Cross multiply
    78,796,729.51x = 108,768,503.46 × 47,436,236.13
  4. Step 4: Simplify right side
    78,796,729.51x = 5,159,568,413,635,282
  5. Step 5: Solve for x
    x = 5,159,568,413,635,282/78,796,729.51
  6. Step 6: Final answer
    x = 65,479,474.16

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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.