Home / 826,197,621.20-1,140,173,162.64-449,874,839.60

Finding the Fourth Proportional to 826,197,621.20, 1,140,173,162.64 and 449,874,839.60

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Solution

The fourth proportional to 826,197,621.20, 1,140,173,162.64 and 449,874,839.60 is: 620,838,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,197,621.20 : 1,140,173,162.64 = 449,874,839.60 : x
  2. Step 2: Convert to fraction form
    826,197,621.20/1,140,173,162.64 = 449,874,839.60/x
  3. Step 3: Cross multiply
    826,197,621.20x = 1,140,173,162.64 × 449,874,839.60
  4. Step 4: Simplify right side
    826,197,621.20x = 512,935,218,658,894,784
  5. Step 5: Solve for x
    x = 512,935,218,658,894,784/826,197,621.20
  6. Step 6: Final answer
    x = 620,838,411.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.