Home / 85,042,662.75-117,395,150.85-57,181,522.05

Finding the Fourth Proportional to 85,042,662.75, 117,395,150.85 and 57,181,522.05

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Solution

The fourth proportional to 85,042,662.75, 117,395,150.85 and 57,181,522.05 is: 78,934,892.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,042,662.75 : 117,395,150.85 = 57,181,522.05 : x
  2. Step 2: Convert to fraction form
    85,042,662.75/117,395,150.85 = 57,181,522.05/x
  3. Step 3: Cross multiply
    85,042,662.75x = 117,395,150.85 × 57,181,522.05
  4. Step 4: Simplify right side
    85,042,662.75x = 6,712,833,406,892,351
  5. Step 5: Solve for x
    x = 6,712,833,406,892,351/85,042,662.75
  6. Step 6: Final answer
    x = 78,934,892.09

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Double scale
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1.5x scale

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.