Home / 125,764,638,625.91-188,580,763,511.43-85,981,790,635.85

Finding the Fourth Proportional to 125,764,638,625.91, 188,580,763,511.43 and 85,981,790,635.85

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Solution

The fourth proportional to 125,764,638,625.91, 188,580,763,511.43 and 85,981,790,635.85 is: 128,927,430,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,764,638,625.91 : 188,580,763,511.43 = 85,981,790,635.85 : x
  2. Step 2: Convert to fraction form
    125,764,638,625.91/188,580,763,511.43 = 85,981,790,635.85/x
  3. Step 3: Cross multiply
    125,764,638,625.91x = 188,580,763,511.43 × 85,981,790,635.85
  4. Step 4: Simplify right side
    125,764,638,625.91x = 16,214,511,726,188,516,343,808
  5. Step 5: Solve for x
    x = 16,214,511,726,188,516,343,808/125,764,638,625.91
  6. Step 6: Final answer
    x = 128,927,430,662.12

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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.