Home / 121,903,619.80-168,179,104.56-69,664,630

Finding the Fourth Proportional to 121,903,619.80, 168,179,104.56 and 69,664,630

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Solution

The fourth proportional to 121,903,619.80, 168,179,104.56 and 69,664,630 is: 96,109,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,903,619.80 : 168,179,104.56 = 69,664,630 : x
  2. Step 2: Convert to fraction form
    121,903,619.80/168,179,104.56 = 69,664,630/x
  3. Step 3: Cross multiply
    121,903,619.80x = 168,179,104.56 × 69,664,630
  4. Step 4: Simplify right side
    121,903,619.80x = 11,716,135,092,903,712
  5. Step 5: Solve for x
    x = 11,716,135,092,903,712/121,903,619.80
  6. Step 6: Final answer
    x = 96,109,821.12

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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.