Home / 121,512,767.18-167,688,129.75-65,758,190.22

Finding the Fourth Proportional to 121,512,767.18, 167,688,129.75 and 65,758,190.22

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Solution

The fourth proportional to 121,512,767.18, 167,688,129.75 and 65,758,190.22 is: 90,746,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,512,767.18 : 167,688,129.75 = 65,758,190.22 : x
  2. Step 2: Convert to fraction form
    121,512,767.18/167,688,129.75 = 65,758,190.22/x
  3. Step 3: Cross multiply
    121,512,767.18x = 167,688,129.75 × 65,758,190.22
  4. Step 4: Simplify right side
    121,512,767.18x = 11,026,867,932,569,310
  5. Step 5: Solve for x
    x = 11,026,867,932,569,310/121,512,767.18
  6. Step 6: Final answer
    x = 90,746,579.05

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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.