Home / 13,376,742.89-18,459,999.66-7,265,171.39

Finding the Fourth Proportional to 13,376,742.89, 18,459,999.66 and 7,265,171.39

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Solution

The fourth proportional to 13,376,742.89, 18,459,999.66 and 7,265,171.39 is: 10,025,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376,742.89 : 18,459,999.66 = 7,265,171.39 : x
  2. Step 2: Convert to fraction form
    13,376,742.89/18,459,999.66 = 7,265,171.39/x
  3. Step 3: Cross multiply
    13,376,742.89x = 18,459,999.66 × 7,265,171.39
  4. Step 4: Simplify right side
    13,376,742.89x = 134,115,061,389,241.72
  5. Step 5: Solve for x
    x = 134,115,061,389,241.72/13,376,742.89
  6. Step 6: Final answer
    x = 10,025,987.83

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1.5x scale

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.