Home / 121,694,021.84-167,938,334.89-65,939,427.52

Finding the Fourth Proportional to 121,694,021.84, 167,938,334.89 and 65,939,427.52

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Solution

The fourth proportional to 121,694,021.84, 167,938,334.89 and 65,939,427.52 is: 90,996,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,694,021.84 : 167,938,334.89 = 65,939,427.52 : x
  2. Step 2: Convert to fraction form
    121,694,021.84/167,938,334.89 = 65,939,427.52/x
  3. Step 3: Cross multiply
    121,694,021.84x = 167,938,334.89 × 65,939,427.52
  4. Step 4: Simplify right side
    121,694,021.84x = 11,073,757,661,308,642
  5. Step 5: Solve for x
    x = 11,073,757,661,308,642/121,694,021.84
  6. Step 6: Final answer
    x = 90,996,726.82

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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.