Home / 28,082,709.40-42,128,729.70-11,043,938.20

Finding the Fourth Proportional to 28,082,709.40, 42,128,729.70 and 11,043,938.20

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Solution

The fourth proportional to 28,082,709.40, 42,128,729.70 and 11,043,938.20 is: 16,567,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,709.40 : 42,128,729.70 = 11,043,938.20 : x
  2. Step 2: Convert to fraction form
    28,082,709.40/42,128,729.70 = 11,043,938.20/x
  3. Step 3: Cross multiply
    28,082,709.40x = 42,128,729.70 × 11,043,938.20
  4. Step 4: Simplify right side
    28,082,709.40x = 465,267,087,251,304.56
  5. Step 5: Solve for x
    x = 465,267,087,251,304.56/28,082,709.40
  6. Step 6: Final answer
    x = 16,567,742.12

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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.