Home / 142,832,091.42-197,110,445.85-80,122,090.38

Finding the Fourth Proportional to 142,832,091.42, 197,110,445.85 and 80,122,090.38

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Solution

The fourth proportional to 142,832,091.42, 197,110,445.85 and 80,122,090.38 is: 110,569,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,832,091.42 : 197,110,445.85 = 80,122,090.38 : x
  2. Step 2: Convert to fraction form
    142,832,091.42/197,110,445.85 = 80,122,090.38/x
  3. Step 3: Cross multiply
    142,832,091.42x = 197,110,445.85 × 80,122,090.38
  4. Step 4: Simplify right side
    142,832,091.42x = 15,792,900,957,235,794
  5. Step 5: Solve for x
    x = 15,792,900,957,235,794/142,832,091.42
  6. Step 6: Final answer
    x = 110,569,696.21

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1.5x scale

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.