Home / 12,130,199.76-18,116,654.64-10,990,685.28

Finding the Fourth Proportional to 12,130,199.76, 18,116,654.64 and 10,990,685.28

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Solution

The fourth proportional to 12,130,199.76, 18,116,654.64 and 10,990,685.28 is: 16,414,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130,199.76 : 18,116,654.64 = 10,990,685.28 : x
  2. Step 2: Convert to fraction form
    12,130,199.76/18,116,654.64 = 10,990,685.28/x
  3. Step 3: Cross multiply
    12,130,199.76x = 18,116,654.64 × 10,990,685.28
  4. Step 4: Simplify right side
    12,130,199.76x = 199,114,449,474,691.69
  5. Step 5: Solve for x
    x = 199,114,449,474,691.69/12,130,199.76
  6. Step 6: Final answer
    x = 16,414,770.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.