Home / 128,232,593,583.66-176,887,457,307.78-79,976,858,922.36

Finding the Fourth Proportional to 128,232,593,583.66, 176,887,457,307.78 and 79,976,858,922.36

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Solution

The fourth proportional to 128,232,593,583.66, 176,887,457,307.78 and 79,976,858,922.36 is: 110,322,210,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,232,593,583.66 : 176,887,457,307.78 = 79,976,858,922.36 : x
  2. Step 2: Convert to fraction form
    128,232,593,583.66/176,887,457,307.78 = 79,976,858,922.36/x
  3. Step 3: Cross multiply
    128,232,593,583.66x = 176,887,457,307.78 × 79,976,858,922.36
  4. Step 4: Simplify right side
    128,232,593,583.66x = 14,146,903,218,239,299,387,392
  5. Step 5: Solve for x
    x = 14,146,903,218,239,299,387,392/128,232,593,583.66
  6. Step 6: Final answer
    x = 110,322,210,780.29

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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.