Home / 13,636,299.72-20,449,133.82-5,111,985

Finding the Fourth Proportional to 13,636,299.72, 20,449,133.82 and 5,111,985

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Solution

The fourth proportional to 13,636,299.72, 20,449,133.82 and 5,111,985 is: 7,665,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636,299.72 : 20,449,133.82 = 5,111,985 : x
  2. Step 2: Convert to fraction form
    13,636,299.72/20,449,133.82 = 5,111,985/x
  3. Step 3: Cross multiply
    13,636,299.72x = 20,449,133.82 × 5,111,985
  4. Step 4: Simplify right side
    13,636,299.72x = 104,535,665,350,832.70
  5. Step 5: Solve for x
    x = 104,535,665,350,832.70/13,636,299.72
  6. Step 6: Final answer
    x = 7,665,984.72

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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.