Home / 10,129,320.42-13,979,793.51-5,777,409.12

Finding the Fourth Proportional to 10,129,320.42, 13,979,793.51 and 5,777,409.12

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Solution

The fourth proportional to 10,129,320.42, 13,979,793.51 and 5,777,409.12 is: 7,973,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129,320.42 : 13,979,793.51 = 5,777,409.12 : x
  2. Step 2: Convert to fraction form
    10,129,320.42/13,979,793.51 = 5,777,409.12/x
  3. Step 3: Cross multiply
    10,129,320.42x = 13,979,793.51 × 5,777,409.12
  4. Step 4: Simplify right side
    10,129,320.42x = 80,766,986,520,390.81
  5. Step 5: Solve for x
    x = 80,766,986,520,390.81/10,129,320.42
  6. Step 6: Final answer
    x = 7,973,583.93

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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.