Home / 874,898,804.25-1,206,791,456.63-561,136,037.85

Finding the Fourth Proportional to 874,898,804.25, 1,206,791,456.63 and 561,136,037.85

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Solution

The fourth proportional to 874,898,804.25, 1,206,791,456.63 and 561,136,037.85 is: 774,002,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,898,804.25 : 1,206,791,456.63 = 561,136,037.85 : x
  2. Step 2: Convert to fraction form
    874,898,804.25/1,206,791,456.63 = 561,136,037.85/x
  3. Step 3: Cross multiply
    874,898,804.25x = 1,206,791,456.63 × 561,136,037.85
  4. Step 4: Simplify right side
    874,898,804.25x = 677,174,176,481,782,656
  5. Step 5: Solve for x
    x = 677,174,176,481,782,656/874,898,804.25
  6. Step 6: Final answer
    x = 774,002,859.75

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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.