Home / 20,303,939.88-30,463,885.08-8,936,419.32

Finding the Fourth Proportional to 20,303,939.88, 30,463,885.08 and 8,936,419.32

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Solution

The fourth proportional to 20,303,939.88, 30,463,885.08 and 8,936,419.32 is: 13,408,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303,939.88 : 30,463,885.08 = 8,936,419.32 : x
  2. Step 2: Convert to fraction form
    20,303,939.88/30,463,885.08 = 8,936,419.32/x
  3. Step 3: Cross multiply
    20,303,939.88x = 30,463,885.08 × 8,936,419.32
  4. Step 4: Simplify right side
    20,303,939.88x = 272,238,051,191,171.75
  5. Step 5: Solve for x
    x = 272,238,051,191,171.75/20,303,939.88
  6. Step 6: Final answer
    x = 13,408,139.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.