Home / 12,940,031,487,968-17,857,804,782,639-7,165,916,519,912

Finding the Fourth Proportional to 12,940,031,487,968, 17,857,804,782,639 and 7,165,916,519,912

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Solution

The fourth proportional to 12,940,031,487,968, 17,857,804,782,639 and 7,165,916,519,912 is: 9,889,275,649,774.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,031,487,968 : 17,857,804,782,639 = 7,165,916,519,912 : x
  2. Step 2: Convert to fraction form
    12,940,031,487,968/17,857,804,782,639 = 7,165,916,519,912/x
  3. Step 3: Cross multiply
    12,940,031,487,968x = 17,857,804,782,639 × 7,165,916,519,912
  4. Step 4: Simplify right side
    12,940,031,487,968x = 127,967,538,301,276,336,804,593,664
  5. Step 5: Solve for x
    x = 127,967,538,301,276,336,804,593,664/12,940,031,487,968
  6. Step 6: Final answer
    x = 9,889,275,649,774.43

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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.