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Finding the Fourth Proportional to 551,206,407.60, 826,809,611.40 and 490,940,998.20

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Solution

The fourth proportional to 551,206,407.60, 826,809,611.40 and 490,940,998.20 is: 736,411,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,206,407.60 : 826,809,611.40 = 490,940,998.20 : x
  2. Step 2: Convert to fraction form
    551,206,407.60/826,809,611.40 = 490,940,998.20/x
  3. Step 3: Cross multiply
    551,206,407.60x = 826,809,611.40 × 490,940,998.20
  4. Step 4: Simplify right side
    551,206,407.60x = 405,914,735,942,070,080
  5. Step 5: Solve for x
    x = 405,914,735,942,070,080/551,206,407.60
  6. Step 6: Final answer
    x = 736,411,497.30

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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.