Home / 78,645,323.29-108,577,043.45-69,919,340.92

Finding the Fourth Proportional to 78,645,323.29, 108,577,043.45 and 69,919,340.92

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Solution

The fourth proportional to 78,645,323.29, 108,577,043.45 and 69,919,340.92 is: 96,530,028.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,645,323.29 : 108,577,043.45 = 69,919,340.92 : x
  2. Step 2: Convert to fraction form
    78,645,323.29/108,577,043.45 = 69,919,340.92/x
  3. Step 3: Cross multiply
    78,645,323.29x = 108,577,043.45 × 69,919,340.92
  4. Step 4: Simplify right side
    78,645,323.29x = 7,591,635,317,066,203
  5. Step 5: Solve for x
    x = 7,591,635,317,066,203/78,645,323.29
  6. Step 6: Final answer
    x = 96,530,028.74

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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.