Home / 78,783,284.47-118,180,594.79-30,261,140.38

Finding the Fourth Proportional to 78,783,284.47, 118,180,594.79 and 30,261,140.38

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Solution

The fourth proportional to 78,783,284.47, 118,180,594.79 and 30,261,140.38 is: 45,393,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,783,284.47 : 118,180,594.79 = 30,261,140.38 : x
  2. Step 2: Convert to fraction form
    78,783,284.47/118,180,594.79 = 30,261,140.38/x
  3. Step 3: Cross multiply
    78,783,284.47x = 118,180,594.79 × 30,261,140.38
  4. Step 4: Simplify right side
    78,783,284.47x = 3,576,279,568,577,102
  5. Step 5: Solve for x
    x = 3,576,279,568,577,102/78,783,284.47
  6. Step 6: Final answer
    x = 45,393,887.71

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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.