Home / 621,635,359.44-857,834,306.82-343,170,903.72

Finding the Fourth Proportional to 621,635,359.44, 857,834,306.82 and 343,170,903.72

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Solution

The fourth proportional to 621,635,359.44, 857,834,306.82 and 343,170,903.72 is: 473,563,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,635,359.44 : 857,834,306.82 = 343,170,903.72 : x
  2. Step 2: Convert to fraction form
    621,635,359.44/857,834,306.82 = 343,170,903.72/x
  3. Step 3: Cross multiply
    621,635,359.44x = 857,834,306.82 × 343,170,903.72
  4. Step 4: Simplify right side
    621,635,359.44x = 294,383,774,313,439,232
  5. Step 5: Solve for x
    x = 294,383,774,313,439,232/621,635,359.44
  6. Step 6: Final answer
    x = 473,563,432.07

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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.