Home / 78,716,279,586.51-108,703,489,237.92-74,427,866,872.05

Finding the Fourth Proportional to 78,716,279,586.51, 108,703,489,237.92 and 74,427,866,872.05

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Solution

The fourth proportional to 78,716,279,586.51, 108,703,489,237.92 and 74,427,866,872.05 is: 102,781,392,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,716,279,586.51 : 108,703,489,237.92 = 74,427,866,872.05 : x
  2. Step 2: Convert to fraction form
    78,716,279,586.51/108,703,489,237.92 = 74,427,866,872.05/x
  3. Step 3: Cross multiply
    78,716,279,586.51x = 108,703,489,237.92 × 74,427,866,872.05
  4. Step 4: Simplify right side
    78,716,279,586.51x = 8,090,568,825,527,230,005,248
  5. Step 5: Solve for x
    x = 8,090,568,825,527,230,005,248/78,716,279,586.51
  6. Step 6: Final answer
    x = 102,781,392,464.51

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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.