Home / 121,510,530.90-167,684,527.49-65,755,953.05

Finding the Fourth Proportional to 121,510,530.90, 167,684,527.49 and 65,755,953.05

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Solution

The fourth proportional to 121,510,530.90, 167,684,527.49 and 65,755,953.05 is: 90,743,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,510,530.90 : 167,684,527.49 = 65,755,953.05 : x
  2. Step 2: Convert to fraction form
    121,510,530.90/167,684,527.49 = 65,755,953.05/x
  3. Step 3: Cross multiply
    121,510,530.90x = 167,684,527.49 × 65,755,953.05
  4. Step 4: Simplify right side
    121,510,530.90x = 11,026,255,915,676,674
  5. Step 5: Solve for x
    x = 11,026,255,915,676,674/121,510,530.90
  6. Step 6: Final answer
    x = 90,743,212.41

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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.