Home / 10,449,749.21-15,650,759.39-4,988,685.47

Finding the Fourth Proportional to 10,449,749.21, 15,650,759.39 and 4,988,685.47

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Solution

The fourth proportional to 10,449,749.21, 15,650,759.39 and 4,988,685.47 is: 7,471,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449,749.21 : 15,650,759.39 = 4,988,685.47 : x
  2. Step 2: Convert to fraction form
    10,449,749.21/15,650,759.39 = 4,988,685.47/x
  3. Step 3: Cross multiply
    10,449,749.21x = 15,650,759.39 × 4,988,685.47
  4. Step 4: Simplify right side
    10,449,749.21x = 78,076,715,860,161.83
  5. Step 5: Solve for x
    x = 78,076,715,860,161.83/10,449,749.21
  6. Step 6: Final answer
    x = 7,471,635.38

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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.