Home / 81,386,339.25-112,285,370.57-50,435,215.41

Finding the Fourth Proportional to 81,386,339.25, 112,285,370.57 and 50,435,215.41

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Solution

The fourth proportional to 81,386,339.25, 112,285,370.57 and 50,435,215.41 is: 69,583,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,386,339.25 : 112,285,370.57 = 50,435,215.41 : x
  2. Step 2: Convert to fraction form
    81,386,339.25/112,285,370.57 = 50,435,215.41/x
  3. Step 3: Cross multiply
    81,386,339.25x = 112,285,370.57 × 50,435,215.41
  4. Step 4: Simplify right side
    81,386,339.25x = 5,663,136,851,837,448
  5. Step 5: Solve for x
    x = 5,663,136,851,837,448/81,386,339.25
  6. Step 6: Final answer
    x = 69,583,383.45

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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.