Home / 782,929,998.88-1,080,474,528.72-430,534,880.80

Finding the Fourth Proportional to 782,929,998.88, 1,080,474,528.72 and 430,534,880.80

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Solution

The fourth proportional to 782,929,998.88, 1,080,474,528.72 and 430,534,880.80 is: 594,155,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,929,998.88 : 1,080,474,528.72 = 430,534,880.80 : x
  2. Step 2: Convert to fraction form
    782,929,998.88/1,080,474,528.72 = 430,534,880.80/x
  3. Step 3: Cross multiply
    782,929,998.88x = 1,080,474,528.72 × 430,534,880.80
  4. Step 4: Simplify right side
    782,929,998.88x = 465,181,972,429,901,376
  5. Step 5: Solve for x
    x = 465,181,972,429,901,376/782,929,998.88
  6. Step 6: Final answer
    x = 594,155,254.10

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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.