Home / 78,515,403.92-117,718,567.04-34,772,325.71

Finding the Fourth Proportional to 78,515,403.92, 117,718,567.04 and 34,772,325.71

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Solution

The fourth proportional to 78,515,403.92, 117,718,567.04 and 34,772,325.71 is: 52,134,334.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,403.92 : 117,718,567.04 = 34,772,325.71 : x
  2. Step 2: Convert to fraction form
    78,515,403.92/117,718,567.04 = 34,772,325.71/x
  3. Step 3: Cross multiply
    78,515,403.92x = 117,718,567.04 × 34,772,325.71
  4. Step 4: Simplify right side
    78,515,403.92x = 4,093,348,355,349,785
  5. Step 5: Solve for x
    x = 4,093,348,355,349,785/78,515,403.92
  6. Step 6: Final answer
    x = 52,134,334.81

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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.