Home / 136,820,113-188,806,226.34-81,846,350.44

Finding the Fourth Proportional to 136,820,113, 188,806,226.34 and 81,846,350.44

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Solution

The fourth proportional to 136,820,113, 188,806,226.34 and 81,846,350.44 is: 112,944,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,820,113 : 188,806,226.34 = 81,846,350.44 : x
  2. Step 2: Convert to fraction form
    136,820,113/188,806,226.34 = 81,846,350.44/x
  3. Step 3: Cross multiply
    136,820,113x = 188,806,226.34 × 81,846,350.44
  4. Step 4: Simplify right side
    136,820,113x = 15,453,100,566,277,598
  5. Step 5: Solve for x
    x = 15,453,100,566,277,598/136,820,113
  6. Step 6: Final answer
    x = 112,944,655.78

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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.