Home / 13,118,632.12-18,104,523.30-7,238,237.50

Finding the Fourth Proportional to 13,118,632.12, 18,104,523.30 and 7,238,237.50

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Solution

The fourth proportional to 13,118,632.12, 18,104,523.30 and 7,238,237.50 is: 9,989,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,632.12 : 18,104,523.30 = 7,238,237.50 : x
  2. Step 2: Convert to fraction form
    13,118,632.12/18,104,523.30 = 7,238,237.50/x
  3. Step 3: Cross multiply
    13,118,632.12x = 18,104,523.30 × 7,238,237.50
  4. Step 4: Simplify right side
    13,118,632.12x = 131,044,839,469,683.75
  5. Step 5: Solve for x
    x = 131,044,839,469,683.75/13,118,632.12
  6. Step 6: Final answer
    x = 9,989,215.21

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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.