Home / 883,003,781.82-1,218,162,331.98-525,571,138.20

Finding the Fourth Proportional to 883,003,781.82, 1,218,162,331.98 and 525,571,138.20

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Solution

The fourth proportional to 883,003,781.82, 1,218,162,331.98 and 525,571,138.20 is: 725,060,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,003,781.82 : 1,218,162,331.98 = 525,571,138.20 : x
  2. Step 2: Convert to fraction form
    883,003,781.82/1,218,162,331.98 = 525,571,138.20/x
  3. Step 3: Cross multiply
    883,003,781.82x = 1,218,162,331.98 × 525,571,138.20
  4. Step 4: Simplify right side
    883,003,781.82x = 640,230,963,331,094,912
  5. Step 5: Solve for x
    x = 640,230,963,331,094,912/883,003,781.82
  6. Step 6: Final answer
    x = 725,060,273.25

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Double scale
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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.