Home / 120,965,686.80-181,448,530.20-69,947,350.80

Finding the Fourth Proportional to 120,965,686.80, 181,448,530.20 and 69,947,350.80

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Solution

The fourth proportional to 120,965,686.80, 181,448,530.20 and 69,947,350.80 is: 104,921,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,965,686.80 : 181,448,530.20 = 69,947,350.80 : x
  2. Step 2: Convert to fraction form
    120,965,686.80/181,448,530.20 = 69,947,350.80/x
  3. Step 3: Cross multiply
    120,965,686.80x = 181,448,530.20 × 69,947,350.80
  4. Step 4: Simplify right side
    120,965,686.80x = 12,691,843,994,043,792
  5. Step 5: Solve for x
    x = 12,691,843,994,043,792/120,965,686.80
  6. Step 6: Final answer
    x = 104,921,026.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.