Home / 68,752,680,669.88-103,128,996,731.74-18,386,805,435.56

Finding the Fourth Proportional to 68,752,680,669.88, 103,128,996,731.74 and 18,386,805,435.56

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Solution

The fourth proportional to 68,752,680,669.88, 103,128,996,731.74 and 18,386,805,435.56 is: 27,580,201,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,752,680,669.88 : 103,128,996,731.74 = 18,386,805,435.56 : x
  2. Step 2: Convert to fraction form
    68,752,680,669.88/103,128,996,731.74 = 18,386,805,435.56/x
  3. Step 3: Cross multiply
    68,752,680,669.88x = 103,128,996,731.74 × 18,386,805,435.56
  4. Step 4: Simplify right side
    68,752,680,669.88x = 1,896,212,797,671,006,797,824
  5. Step 5: Solve for x
    x = 1,896,212,797,671,006,797,824/68,752,680,669.88
  6. Step 6: Final answer
    x = 27,580,201,661.89

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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.