Home / 78,054,276.72-117,081,103.68-34,893,212.76

Finding the Fourth Proportional to 78,054,276.72, 117,081,103.68 and 34,893,212.76

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Solution

The fourth proportional to 78,054,276.72, 117,081,103.68 and 34,893,212.76 is: 52,339,679.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,054,276.72 : 117,081,103.68 = 34,893,212.76 : x
  2. Step 2: Convert to fraction form
    78,054,276.72/117,081,103.68 = 34,893,212.76/x
  3. Step 3: Cross multiply
    78,054,276.72x = 117,081,103.68 × 34,893,212.76
  4. Step 4: Simplify right side
    78,054,276.72x = 4,085,335,860,881,859
  5. Step 5: Solve for x
    x = 4,085,335,860,881,859/78,054,276.72
  6. Step 6: Final answer
    x = 52,339,679.93

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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.