Home / 85,310,164.86-117,742,105.35-52,288,782.54

Finding the Fourth Proportional to 85,310,164.86, 117,742,105.35 and 52,288,782.54

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Solution

The fourth proportional to 85,310,164.86, 117,742,105.35 and 52,288,782.54 is: 72,167,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,310,164.86 : 117,742,105.35 = 52,288,782.54 : x
  2. Step 2: Convert to fraction form
    85,310,164.86/117,742,105.35 = 52,288,782.54/x
  3. Step 3: Cross multiply
    85,310,164.86x = 117,742,105.35 × 52,288,782.54
  4. Step 4: Simplify right side
    85,310,164.86x = 6,156,591,342,447,920
  5. Step 5: Solve for x
    x = 6,156,591,342,447,920/85,310,164.86
  6. Step 6: Final answer
    x = 72,167,148.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.