Home / 821,382,770.43-1,133,563,836.49-464,026,604.78

Finding the Fourth Proportional to 821,382,770.43, 1,133,563,836.49 and 464,026,604.78

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Solution

The fourth proportional to 821,382,770.43, 1,133,563,836.49 and 464,026,604.78 is: 640,388,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,382,770.43 : 1,133,563,836.49 = 464,026,604.78 : x
  2. Step 2: Convert to fraction form
    821,382,770.43/1,133,563,836.49 = 464,026,604.78/x
  3. Step 3: Cross multiply
    821,382,770.43x = 1,133,563,836.49 × 464,026,604.78
  4. Step 4: Simplify right side
    821,382,770.43x = 526,003,778,349,519,616
  5. Step 5: Solve for x
    x = 526,003,778,349,519,616/821,382,770.43
  6. Step 6: Final answer
    x = 640,388,132.41

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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.