Home / 681,453,553.40-1,022,180,330.10-518,194,878.20

Finding the Fourth Proportional to 681,453,553.40, 1,022,180,330.10 and 518,194,878.20

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Solution

The fourth proportional to 681,453,553.40, 1,022,180,330.10 and 518,194,878.20 is: 777,292,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,453,553.40 : 1,022,180,330.10 = 518,194,878.20 : x
  2. Step 2: Convert to fraction form
    681,453,553.40/1,022,180,330.10 = 518,194,878.20/x
  3. Step 3: Cross multiply
    681,453,553.40x = 1,022,180,330.10 × 518,194,878.20
  4. Step 4: Simplify right side
    681,453,553.40x = 529,688,611,654,605,312
  5. Step 5: Solve for x
    x = 529,688,611,654,605,312/681,453,553.40
  6. Step 6: Final answer
    x = 777,292,317.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.