Home / 78,645,322.29-108,577,042.07-69,919,339.92

Finding the Fourth Proportional to 78,645,322.29, 108,577,042.07 and 69,919,339.92

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Solution

The fourth proportional to 78,645,322.29, 108,577,042.07 and 69,919,339.92 is: 96,530,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,645,322.29 : 108,577,042.07 = 69,919,339.92 : x
  2. Step 2: Convert to fraction form
    78,645,322.29/108,577,042.07 = 69,919,339.92/x
  3. Step 3: Cross multiply
    78,645,322.29x = 108,577,042.07 × 69,919,339.92
  4. Step 4: Simplify right side
    78,645,322.29x = 7,591,635,112,000,470
  5. Step 5: Solve for x
    x = 7,591,635,112,000,470/78,645,322.29
  6. Step 6: Final answer
    x = 96,530,027.36

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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.