Home / 121,871,569.98-168,183,092.58-66,116,990.25

Finding the Fourth Proportional to 121,871,569.98, 168,183,092.58 and 66,116,990.25

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Solution

The fourth proportional to 121,871,569.98, 168,183,092.58 and 66,116,990.25 is: 91,241,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,871,569.98 : 168,183,092.58 = 66,116,990.25 : x
  2. Step 2: Convert to fraction form
    121,871,569.98/168,183,092.58 = 66,116,990.25/x
  3. Step 3: Cross multiply
    121,871,569.98x = 168,183,092.58 × 66,116,990.25
  4. Step 4: Simplify right side
    121,871,569.98x = 11,119,759,892,326,708
  5. Step 5: Solve for x
    x = 11,119,759,892,326,708/121,871,569.98
  6. Step 6: Final answer
    x = 91,241,623.41

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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.