Home / 78,494,097.20-108,319,942.44-43,211,615.54

Finding the Fourth Proportional to 78,494,097.20, 108,319,942.44 and 43,211,615.54

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Solution

The fourth proportional to 78,494,097.20, 108,319,942.44 and 43,211,615.54 is: 59,630,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,494,097.20 : 108,319,942.44 = 43,211,615.54 : x
  2. Step 2: Convert to fraction form
    78,494,097.20/108,319,942.44 = 43,211,615.54/x
  3. Step 3: Cross multiply
    78,494,097.20x = 108,319,942.44 × 43,211,615.54
  4. Step 4: Simplify right side
    78,494,097.20x = 4,680,679,707,490,609
  5. Step 5: Solve for x
    x = 4,680,679,707,490,609/78,494,097.20
  6. Step 6: Final answer
    x = 59,630,977.04

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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.