Home / 1,422,223,042.32-1,962,671,997.47-787,187,640.98

Finding the Fourth Proportional to 1,422,223,042.32, 1,962,671,997.47 and 787,187,640.98

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Solution

The fourth proportional to 1,422,223,042.32, 1,962,671,997.47 and 787,187,640.98 is: 1,086,321,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,223,042.32 : 1,962,671,997.47 = 787,187,640.98 : x
  2. Step 2: Convert to fraction form
    1,422,223,042.32/1,962,671,997.47 = 787,187,640.98/x
  3. Step 3: Cross multiply
    1,422,223,042.32x = 1,962,671,997.47 × 787,187,640.98
  4. Step 4: Simplify right side
    1,422,223,042.32x = 1,544,991,139,692,164,608
  5. Step 5: Solve for x
    x = 1,544,991,139,692,164,608/1,422,223,042.32
  6. Step 6: Final answer
    x = 1,086,321,268.69

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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.