Home / 20,392,286.60-28,142,098-11,099,407.48

Finding the Fourth Proportional to 20,392,286.60, 28,142,098 and 11,099,407.48

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Solution

The fourth proportional to 20,392,286.60, 28,142,098 and 11,099,407.48 is: 15,317,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,286.60 : 28,142,098 = 11,099,407.48 : x
  2. Step 2: Convert to fraction form
    20,392,286.60/28,142,098 = 11,099,407.48/x
  3. Step 3: Cross multiply
    20,392,286.60x = 28,142,098 × 11,099,407.48
  4. Step 4: Simplify right side
    20,392,286.60x = 312,360,613,044,093.06
  5. Step 5: Solve for x
    x = 312,360,613,044,093.06/20,392,286.60
  6. Step 6: Final answer
    x = 15,317,586.46

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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.