Home / 7,072,040.70-10,655,317.20-6,389,720.09

Finding the Fourth Proportional to 7,072,040.70, 10,655,317.20 and 6,389,720.09

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Solution

The fourth proportional to 7,072,040.70, 10,655,317.20 and 6,389,720.09 is: 9,627,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072,040.70 : 10,655,317.20 = 6,389,720.09 : x
  2. Step 2: Convert to fraction form
    7,072,040.70/10,655,317.20 = 6,389,720.09/x
  3. Step 3: Cross multiply
    7,072,040.70x = 10,655,317.20 × 6,389,720.09
  4. Step 4: Simplify right side
    7,072,040.70x = 68,084,494,324,885.95
  5. Step 5: Solve for x
    x = 68,084,494,324,885.95/7,072,040.70
  6. Step 6: Final answer
    x = 9,627,276.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.