Home / 77,193,750.60-115,790,625.90-66,432,070.35

Finding the Fourth Proportional to 77,193,750.60, 115,790,625.90 and 66,432,070.35

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Solution

The fourth proportional to 77,193,750.60, 115,790,625.90 and 66,432,070.35 is: 99,648,105.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,193,750.60 : 115,790,625.90 = 66,432,070.35 : x
  2. Step 2: Convert to fraction form
    77,193,750.60/115,790,625.90 = 66,432,070.35/x
  3. Step 3: Cross multiply
    77,193,750.60x = 115,790,625.90 × 66,432,070.35
  4. Step 4: Simplify right side
    77,193,750.60x = 7,692,211,005,659,333
  5. Step 5: Solve for x
    x = 7,692,211,005,659,333/77,193,750.60
  6. Step 6: Final answer
    x = 99,648,105.53

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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.