Home / 15,155,561.67-20,914,683.49-8,186,239.18

Finding the Fourth Proportional to 15,155,561.67, 20,914,683.49 and 8,186,239.18

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Solution

The fourth proportional to 15,155,561.67, 20,914,683.49 and 8,186,239.18 is: 11,297,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155,561.67 : 20,914,683.49 = 8,186,239.18 : x
  2. Step 2: Convert to fraction form
    15,155,561.67/20,914,683.49 = 8,186,239.18/x
  3. Step 3: Cross multiply
    15,155,561.67x = 20,914,683.49 × 8,186,239.18
  4. Step 4: Simplify right side
    15,155,561.67x = 171,212,601,459,513.31
  5. Step 5: Solve for x
    x = 171,212,601,459,513.31/15,155,561.67
  6. Step 6: Final answer
    x = 11,297,014.60

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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.