Home / 121,512,773.11-167,688,138.23-65,758,196.24

Finding the Fourth Proportional to 121,512,773.11, 167,688,138.23 and 65,758,196.24

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Solution

The fourth proportional to 121,512,773.11, 167,688,138.23 and 65,758,196.24 is: 90,746,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,512,773.11 : 167,688,138.23 = 65,758,196.24 : x
  2. Step 2: Convert to fraction form
    121,512,773.11/167,688,138.23 = 65,758,196.24/x
  3. Step 3: Cross multiply
    121,512,773.11x = 167,688,138.23 × 65,758,196.24
  4. Step 4: Simplify right side
    121,512,773.11x = 11,026,869,500,848,586
  5. Step 5: Solve for x
    x = 11,026,869,500,848,586/121,512,773.11
  6. Step 6: Final answer
    x = 90,746,587.53

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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.