Home / 660,694,281.05-911,782,080.36-378,491,263.00

Finding the Fourth Proportional to 660,694,281.05, 911,782,080.36 and 378,491,263.00

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Solution

The fourth proportional to 660,694,281.05, 911,782,080.36 and 378,491,263.00 is: 522,331,676.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,694,281.05 : 911,782,080.36 = 378,491,263.00 : x
  2. Step 2: Convert to fraction form
    660,694,281.05/911,782,080.36 = 378,491,263.00/x
  3. Step 3: Cross multiply
    660,694,281.05x = 911,782,080.36 × 378,491,263.00
  4. Step 4: Simplify right side
    660,694,281.05x = 345,101,551,173,944,448
  5. Step 5: Solve for x
    x = 345,101,551,173,944,448/660,694,281.05
  6. Step 6: Final answer
    x = 522,331,676.04

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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.