Home / 2,019,609,612.80-3,029,414,419.20-639,532,131.20

Finding the Fourth Proportional to 2,019,609,612.80, 3,029,414,419.20 and 639,532,131.20

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Solution

The fourth proportional to 2,019,609,612.80, 3,029,414,419.20 and 639,532,131.20 is: 959,298,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,609,612.80 : 3,029,414,419.20 = 639,532,131.20 : x
  2. Step 2: Convert to fraction form
    2,019,609,612.80/3,029,414,419.20 = 639,532,131.20/x
  3. Step 3: Cross multiply
    2,019,609,612.80x = 3,029,414,419.20 × 639,532,131.20
  4. Step 4: Simplify right side
    2,019,609,612.80x = 1,937,407,859,798,986,240
  5. Step 5: Solve for x
    x = 1,937,407,859,798,986,240/2,019,609,612.80
  6. Step 6: Final answer
    x = 959,298,196.80

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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.