Home / 85,536,243.20-128,341,228.80-49,665,113.60

Finding the Fourth Proportional to 85,536,243.20, 128,341,228.80 and 49,665,113.60

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Solution

The fourth proportional to 85,536,243.20, 128,341,228.80 and 49,665,113.60 is: 74,519,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,243.20 : 128,341,228.80 = 49,665,113.60 : x
  2. Step 2: Convert to fraction form
    85,536,243.20/128,341,228.80 = 49,665,113.60/x
  3. Step 3: Cross multiply
    85,536,243.20x = 128,341,228.80 × 49,665,113.60
  4. Step 4: Simplify right side
    85,536,243.20x = 6,374,081,707,915,592
  5. Step 5: Solve for x
    x = 6,374,081,707,915,592/85,536,243.20
  6. Step 6: Final answer
    x = 74,519,074.83

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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.