Home / 737,908,721.69-1,018,320,811.67-420,364,261.41

Finding the Fourth Proportional to 737,908,721.69, 1,018,320,811.67 and 420,364,261.41

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Solution

The fourth proportional to 737,908,721.69, 1,018,320,811.67 and 420,364,261.41 is: 580,106,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,908,721.69 : 1,018,320,811.67 = 420,364,261.41 : x
  2. Step 2: Convert to fraction form
    737,908,721.69/1,018,320,811.67 = 420,364,261.41/x
  3. Step 3: Cross multiply
    737,908,721.69x = 1,018,320,811.67 × 420,364,261.41
  4. Step 4: Simplify right side
    737,908,721.69x = 428,065,675,873,323,456
  5. Step 5: Solve for x
    x = 428,065,675,873,323,456/737,908,721.69
  6. Step 6: Final answer
    x = 580,106,540.68

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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.