Home / 78,479,620.54-108,301,016.90-43,196,671.29

Finding the Fourth Proportional to 78,479,620.54, 108,301,016.90 and 43,196,671.29

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Solution

The fourth proportional to 78,479,620.54, 108,301,016.90 and 43,196,671.29 is: 59,610,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,479,620.54 : 108,301,016.90 = 43,196,671.29 : x
  2. Step 2: Convert to fraction form
    78,479,620.54/108,301,016.90 = 43,196,671.29/x
  3. Step 3: Cross multiply
    78,479,620.54x = 108,301,016.90 × 43,196,671.29
  4. Step 4: Simplify right side
    78,479,620.54x = 4,678,243,427,402,103
  5. Step 5: Solve for x
    x = 4,678,243,427,402,103/78,479,620.54
  6. Step 6: Final answer
    x = 59,610,933.32

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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.