Home / 78,155,889.44-117,085,858.97-52,169,835.15

Finding the Fourth Proportional to 78,155,889.44, 117,085,858.97 and 52,169,835.15

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Solution

The fourth proportional to 78,155,889.44, 117,085,858.97 and 52,169,835.15 is: 78,155,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,155,889.44 : 117,085,858.97 = 52,169,835.15 : x
  2. Step 2: Convert to fraction form
    78,155,889.44/117,085,858.97 = 52,169,835.15/x
  3. Step 3: Cross multiply
    78,155,889.44x = 117,085,858.97 × 52,169,835.15
  4. Step 4: Simplify right side
    78,155,889.44x = 6,108,349,960,600,200
  5. Step 5: Solve for x
    x = 6,108,349,960,600,200/78,155,889.44
  6. Step 6: Final answer
    x = 78,155,977.81

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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.