Home / 12,101,109.80-18,151,664.70-9,361,236.20

Finding the Fourth Proportional to 12,101,109.80, 18,151,664.70 and 9,361,236.20

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Solution

The fourth proportional to 12,101,109.80, 18,151,664.70 and 9,361,236.20 is: 14,041,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,109.80 : 18,151,664.70 = 9,361,236.20 : x
  2. Step 2: Convert to fraction form
    12,101,109.80/18,151,664.70 = 9,361,236.20/x
  3. Step 3: Cross multiply
    12,101,109.80x = 18,151,664.70 × 9,361,236.20
  4. Step 4: Simplify right side
    12,101,109.80x = 169,922,020,679,902.12
  5. Step 5: Solve for x
    x = 169,922,020,679,902.12/12,101,109.80
  6. Step 6: Final answer
    x = 14,041,854.30

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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.