Home / 193,536,985.20-290,438,188.20-85,908,850.80

Finding the Fourth Proportional to 193,536,985.20, 290,438,188.20 and 85,908,850.80

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Solution

The fourth proportional to 193,536,985.20, 290,438,188.20 and 85,908,850.80 is: 128,922,184.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,536,985.20 : 290,438,188.20 = 85,908,850.80 : x
  2. Step 2: Convert to fraction form
    193,536,985.20/290,438,188.20 = 85,908,850.80/x
  3. Step 3: Cross multiply
    193,536,985.20x = 290,438,188.20 × 85,908,850.80
  4. Step 4: Simplify right side
    193,536,985.20x = 24,951,210,976,696,120
  5. Step 5: Solve for x
    x = 24,951,210,976,696,120/193,536,985.20
  6. Step 6: Final answer
    x = 128,922,184.83

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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.