Home / 3,128,766,217.44-4,316,629,529.28-1,938,901,040.80

Finding the Fourth Proportional to 3,128,766,217.44, 4,316,629,529.28 and 1,938,901,040.80

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Solution

The fourth proportional to 3,128,766,217.44, 4,316,629,529.28 and 1,938,901,040.80 is: 2,675,021,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,766,217.44 : 4,316,629,529.28 = 1,938,901,040.80 : x
  2. Step 2: Convert to fraction form
    3,128,766,217.44/4,316,629,529.28 = 1,938,901,040.80/x
  3. Step 3: Cross multiply
    3,128,766,217.44x = 4,316,629,529.28 × 1,938,901,040.80
  4. Step 4: Simplify right side
    3,128,766,217.44x = 8,369,517,487,069,005,824
  5. Step 5: Solve for x
    x = 8,369,517,487,069,005,824/3,128,766,217.44
  6. Step 6: Final answer
    x = 2,675,021,687.60

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1.5x scale

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.