Home / 13,118,211.31-18,108,937.26-8,474,261.18

Finding the Fourth Proportional to 13,118,211.31, 18,108,937.26 and 8,474,261.18

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Solution

The fourth proportional to 13,118,211.31, 18,108,937.26 and 8,474,261.18 is: 11,698,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,211.31 : 18,108,937.26 = 8,474,261.18 : x
  2. Step 2: Convert to fraction form
    13,118,211.31/18,108,937.26 = 8,474,261.18/x
  3. Step 3: Cross multiply
    13,118,211.31x = 18,108,937.26 × 8,474,261.18
  4. Step 4: Simplify right side
    13,118,211.31x = 153,459,864,033,473.56
  5. Step 5: Solve for x
    x = 153,459,864,033,473.56/13,118,211.31
  6. Step 6: Final answer
    x = 11,698,230.83

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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.