Home / 39,228,337.28-54,135,729.60-21,824,885.12

Finding the Fourth Proportional to 39,228,337.28, 54,135,729.60 and 21,824,885.12

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Solution

The fourth proportional to 39,228,337.28, 54,135,729.60 and 21,824,885.12 is: 30,118,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228,337.28 : 54,135,729.60 = 21,824,885.12 : x
  2. Step 2: Convert to fraction form
    39,228,337.28/54,135,729.60 = 21,824,885.12/x
  3. Step 3: Cross multiply
    39,228,337.28x = 54,135,729.60 × 21,824,885.12
  4. Step 4: Simplify right side
    39,228,337.28x = 1,181,506,079,407,383.75
  5. Step 5: Solve for x
    x = 1,181,506,079,407,383.75/39,228,337.28
  6. Step 6: Final answer
    x = 30,118,688.72

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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.