Home / 18,774,961.11-28,172,052.92-8,938,157.09

Finding the Fourth Proportional to 18,774,961.11, 28,172,052.92 and 8,938,157.09

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Solution

The fourth proportional to 18,774,961.11, 28,172,052.92 and 8,938,157.09 is: 13,411,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774,961.11 : 28,172,052.92 = 8,938,157.09 : x
  2. Step 2: Convert to fraction form
    18,774,961.11/28,172,052.92 = 8,938,157.09/x
  3. Step 3: Cross multiply
    18,774,961.11x = 28,172,052.92 × 8,938,157.09
  4. Step 4: Simplify right side
    18,774,961.11x = 251,806,234,428,238.34
  5. Step 5: Solve for x
    x = 251,806,234,428,238.34/18,774,961.11
  6. Step 6: Final answer
    x = 13,411,811.24

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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.