Home / 828,143,998.80-1,241,743,606.20-310,591,323.60

Finding the Fourth Proportional to 828,143,998.80, 1,241,743,606.20 and 310,591,323.60

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Solution

The fourth proportional to 828,143,998.80, 1,241,743,606.20 and 310,591,323.60 is: 465,709,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,143,998.80 : 1,241,743,606.20 = 310,591,323.60 : x
  2. Step 2: Convert to fraction form
    828,143,998.80/1,241,743,606.20 = 310,591,323.60/x
  3. Step 3: Cross multiply
    828,143,998.80x = 1,241,743,606.20 × 310,591,323.60
  4. Step 4: Simplify right side
    828,143,998.80x = 385,674,790,221,495,232
  5. Step 5: Solve for x
    x = 385,674,790,221,495,232/828,143,998.80
  6. Step 6: Final answer
    x = 465,709,817.11

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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.