Home / 1,422,223,039.68-1,962,671,993.85-787,187,638.35

Finding the Fourth Proportional to 1,422,223,039.68, 1,962,671,993.85 and 787,187,638.35

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Solution

The fourth proportional to 1,422,223,039.68, 1,962,671,993.85 and 787,187,638.35 is: 1,086,321,265.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,223,039.68 : 1,962,671,993.85 = 787,187,638.35 : x
  2. Step 2: Convert to fraction form
    1,422,223,039.68/1,962,671,993.85 = 787,187,638.35/x
  3. Step 3: Cross multiply
    1,422,223,039.68x = 1,962,671,993.85 × 787,187,638.35
  4. Step 4: Simplify right side
    1,422,223,039.68x = 1,544,991,131,697,379,840
  5. Step 5: Solve for x
    x = 1,544,991,131,697,379,840/1,422,223,039.68
  6. Step 6: Final answer
    x = 1,086,321,265.09

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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.