Home / 13,517,915.18-18,654,009.60-7,716,466.22

Finding the Fourth Proportional to 13,517,915.18, 18,654,009.60 and 7,716,466.22

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Solution

The fourth proportional to 13,517,915.18, 18,654,009.60 and 7,716,466.22 is: 10,648,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517,915.18 : 18,654,009.60 = 7,716,466.22 : x
  2. Step 2: Convert to fraction form
    13,517,915.18/18,654,009.60 = 7,716,466.22/x
  3. Step 3: Cross multiply
    13,517,915.18x = 18,654,009.60 × 7,716,466.22
  4. Step 4: Simplify right side
    13,517,915.18x = 143,943,034,945,955.72
  5. Step 5: Solve for x
    x = 143,943,034,945,955.72/13,517,915.18
  6. Step 6: Final answer
    x = 10,648,316.18

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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.