Home / 10,655,670.82-15,987,532.72-6,398,806.54

Finding the Fourth Proportional to 10,655,670.82, 15,987,532.72 and 6,398,806.54

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Solution

The fourth proportional to 10,655,670.82, 15,987,532.72 and 6,398,806.54 is: 9,600,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655,670.82 : 15,987,532.72 = 6,398,806.54 : x
  2. Step 2: Convert to fraction form
    10,655,670.82/15,987,532.72 = 6,398,806.54/x
  3. Step 3: Cross multiply
    10,655,670.82x = 15,987,532.72 × 6,398,806.54
  4. Step 4: Simplify right side
    10,655,670.82x = 102,301,128,847,262.33
  5. Step 5: Solve for x
    x = 102,301,128,847,262.33/10,655,670.82
  6. Step 6: Final answer
    x = 9,600,627.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.