Home / 71,246,140.96-98,328,947.34-39,896,128.30

Finding the Fourth Proportional to 71,246,140.96, 98,328,947.34 and 39,896,128.30

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Solution

The fourth proportional to 71,246,140.96, 98,328,947.34 and 39,896,128.30 is: 55,061,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,246,140.96 : 98,328,947.34 = 39,896,128.30 : x
  2. Step 2: Convert to fraction form
    71,246,140.96/98,328,947.34 = 39,896,128.30/x
  3. Step 3: Cross multiply
    71,246,140.96x = 98,328,947.34 × 39,896,128.30
  4. Step 4: Simplify right side
    71,246,140.96x = 3,922,944,298,680,583.50
  5. Step 5: Solve for x
    x = 3,922,944,298,680,583.50/71,246,140.96
  6. Step 6: Final answer
    x = 55,061,849.61

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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.