Home / 298,368,986.80-447,553,480.20-217,747,418.80

Finding the Fourth Proportional to 298,368,986.80, 447,553,480.20 and 217,747,418.80

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Solution

The fourth proportional to 298,368,986.80, 447,553,480.20 and 217,747,418.80 is: 326,621,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,368,986.80 : 447,553,480.20 = 217,747,418.80 : x
  2. Step 2: Convert to fraction form
    298,368,986.80/447,553,480.20 = 217,747,418.80/x
  3. Step 3: Cross multiply
    298,368,986.80x = 447,553,480.20 × 217,747,418.80
  4. Step 4: Simplify right side
    298,368,986.80x = 97,453,615,088,506,912
  5. Step 5: Solve for x
    x = 97,453,615,088,506,912/298,368,986.80
  6. Step 6: Final answer
    x = 326,621,128.20

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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.