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Finding the Fourth Proportional to 445,589,683.80, 668,384,525.70 and 254,486,707.80

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Solution

The fourth proportional to 445,589,683.80, 668,384,525.70 and 254,486,707.80 is: 381,730,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,589,683.80 : 668,384,525.70 = 254,486,707.80 : x
  2. Step 2: Convert to fraction form
    445,589,683.80/668,384,525.70 = 254,486,707.80/x
  3. Step 3: Cross multiply
    445,589,683.80x = 668,384,525.70 × 254,486,707.80
  4. Step 4: Simplify right side
    445,589,683.80x = 170,094,977,489,857,504
  5. Step 5: Solve for x
    x = 170,094,977,489,857,504/445,589,683.80
  6. Step 6: Final answer
    x = 381,730,061.70

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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.