Home / 78,515,403.63-117,718,566.61-34,772,325.43

Finding the Fourth Proportional to 78,515,403.63, 117,718,566.61 and 34,772,325.43

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Solution

The fourth proportional to 78,515,403.63, 117,718,566.61 and 34,772,325.43 is: 52,134,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,403.63 : 117,718,566.61 = 34,772,325.43 : x
  2. Step 2: Convert to fraction form
    78,515,403.63/117,718,566.61 = 34,772,325.43/x
  3. Step 3: Cross multiply
    78,515,403.63x = 117,718,566.61 × 34,772,325.43
  4. Step 4: Simplify right side
    78,515,403.63x = 4,093,348,307,316,052
  5. Step 5: Solve for x
    x = 4,093,348,307,316,052/78,515,403.63
  6. Step 6: Final answer
    x = 52,134,334.39

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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.