Home / 128,892,423,694.44-177,847,932,403.60-71,798,313,360.36

Finding the Fourth Proportional to 128,892,423,694.44, 177,847,932,403.60 and 71,798,313,360.36

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Solution

The fourth proportional to 128,892,423,694.44, 177,847,932,403.60 and 71,798,313,360.36 is: 99,068,519,430.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,892,423,694.44 : 177,847,932,403.60 = 71,798,313,360.36 : x
  2. Step 2: Convert to fraction form
    128,892,423,694.44/177,847,932,403.60 = 71,798,313,360.36/x
  3. Step 3: Cross multiply
    128,892,423,694.44x = 177,847,932,403.60 × 71,798,313,360.36
  4. Step 4: Simplify right side
    128,892,423,694.44x = 12,769,181,581,205,796,028,416
  5. Step 5: Solve for x
    x = 12,769,181,581,205,796,028,416/128,892,423,694.44
  6. Step 6: Final answer
    x = 99,068,519,430.41

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1.5x scale

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.