Home / 20,392,259.36-28,142,060.39-11,099,380.24

Finding the Fourth Proportional to 20,392,259.36, 28,142,060.39 and 11,099,380.24

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Solution

The fourth proportional to 20,392,259.36, 28,142,060.39 and 11,099,380.24 is: 15,317,548.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,259.36 : 28,142,060.39 = 11,099,380.24 : x
  2. Step 2: Convert to fraction form
    20,392,259.36/28,142,060.39 = 11,099,380.24/x
  3. Step 3: Cross multiply
    20,392,259.36x = 28,142,060.39 × 11,099,380.24
  4. Step 4: Simplify right side
    20,392,259.36x = 312,359,428,931,091
  5. Step 5: Solve for x
    x = 312,359,428,931,091/20,392,259.36
  6. Step 6: Final answer
    x = 15,317,548.85

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1.5x scale

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.