Home / 8,478,169.25-12,718,012.53-3,290,657.18

Finding the Fourth Proportional to 8,478,169.25, 12,718,012.53 and 3,290,657.18

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Solution

The fourth proportional to 8,478,169.25, 12,718,012.53 and 3,290,657.18 is: 4,936,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,169.25 : 12,718,012.53 = 3,290,657.18 : x
  2. Step 2: Convert to fraction form
    8,478,169.25/12,718,012.53 = 3,290,657.18/x
  3. Step 3: Cross multiply
    8,478,169.25x = 12,718,012.53 × 3,290,657.18
  4. Step 4: Simplify right side
    8,478,169.25x = 41,850,619,233,694.55
  5. Step 5: Solve for x
    x = 41,850,619,233,694.55/8,478,169.25
  6. Step 6: Final answer
    x = 4,936,280.23

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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.