Home / 121,116,721.80-181,458,569.70-73,706,935.80

Finding the Fourth Proportional to 121,116,721.80, 181,458,569.70 and 73,706,935.80

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Solution

The fourth proportional to 121,116,721.80, 181,458,569.70 and 73,706,935.80 is: 110,428,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116,721.80 : 181,458,569.70 = 73,706,935.80 : x
  2. Step 2: Convert to fraction form
    121,116,721.80/181,458,569.70 = 73,706,935.80/x
  3. Step 3: Cross multiply
    121,116,721.80x = 181,458,569.70 × 73,706,935.80
  4. Step 4: Simplify right side
    121,116,721.80x = 13,374,755,147,237,724
  5. Step 5: Solve for x
    x = 13,374,755,147,237,724/121,116,721.80
  6. Step 6: Final answer
    x = 110,428,642.29

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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.