Home / 78,366,481.13-108,145,813.16-43,084,886.56

Finding the Fourth Proportional to 78,366,481.13, 108,145,813.16 and 43,084,886.56

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Solution

The fourth proportional to 78,366,481.13, 108,145,813.16 and 43,084,886.56 is: 59,457,181.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,366,481.13 : 108,145,813.16 = 43,084,886.56 : x
  2. Step 2: Convert to fraction form
    78,366,481.13/108,145,813.16 = 43,084,886.56/x
  3. Step 3: Cross multiply
    78,366,481.13x = 108,145,813.16 × 43,084,886.56
  4. Step 4: Simplify right side
    78,366,481.13x = 4,659,450,091,181,402
  5. Step 5: Solve for x
    x = 4,659,450,091,181,402/78,366,481.13
  6. Step 6: Final answer
    x = 59,457,181.49

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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.