Home / 57,037,631,361.72-78,707,981,395.80-31,661,103,949.44

Finding the Fourth Proportional to 57,037,631,361.72, 78,707,981,395.80 and 31,661,103,949.44

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Solution

The fourth proportional to 57,037,631,361.72, 78,707,981,395.80 and 31,661,103,949.44 is: 43,690,130,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037,631,361.72 : 78,707,981,395.80 = 31,661,103,949.44 : x
  2. Step 2: Convert to fraction form
    57,037,631,361.72/78,707,981,395.80 = 31,661,103,949.44/x
  3. Step 3: Cross multiply
    57,037,631,361.72x = 78,707,981,395.80 × 31,661,103,949.44
  4. Step 4: Simplify right side
    57,037,631,361.72x = 2,491,981,580,623,013,216,256
  5. Step 5: Solve for x
    x = 2,491,981,580,623,013,216,256/57,037,631,361.72
  6. Step 6: Final answer
    x = 43,690,130,903.57

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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.