Home / 826,777,311.20-1,240,165,966.80-413,528,789.60

Finding the Fourth Proportional to 826,777,311.20, 1,240,165,966.80 and 413,528,789.60

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Solution

The fourth proportional to 826,777,311.20, 1,240,165,966.80 and 413,528,789.60 is: 620,293,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,777,311.20 : 1,240,165,966.80 = 413,528,789.60 : x
  2. Step 2: Convert to fraction form
    826,777,311.20/1,240,165,966.80 = 413,528,789.60/x
  3. Step 3: Cross multiply
    826,777,311.20x = 1,240,165,966.80 × 413,528,789.60
  4. Step 4: Simplify right side
    826,777,311.20x = 512,844,331,153,917,824
  5. Step 5: Solve for x
    x = 512,844,331,153,917,824/826,777,311.20
  6. Step 6: Final answer
    x = 620,293,184.40

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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.