Home / 14,507,180.64-20,019,118.55-7,979,756.31

Finding the Fourth Proportional to 14,507,180.64, 20,019,118.55 and 7,979,756.31

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Solution

The fourth proportional to 14,507,180.64, 20,019,118.55 and 7,979,756.31 is: 11,011,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507,180.64 : 20,019,118.55 = 7,979,756.31 : x
  2. Step 2: Convert to fraction form
    14,507,180.64/20,019,118.55 = 7,979,756.31/x
  3. Step 3: Cross multiply
    14,507,180.64x = 20,019,118.55 × 7,979,756.31
  4. Step 4: Simplify right side
    14,507,180.64x = 159,747,687,530,101.78
  5. Step 5: Solve for x
    x = 159,747,687,530,101.78/14,507,180.64
  6. Step 6: Final answer
    x = 11,011,628.76

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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.