Home / 74,728,153.78-112,084,662.42-20,146,256.76

Finding the Fourth Proportional to 74,728,153.78, 112,084,662.42 and 20,146,256.76

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Solution

The fourth proportional to 74,728,153.78, 112,084,662.42 and 20,146,256.76 is: 30,217,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,728,153.78 : 112,084,662.42 = 20,146,256.76 : x
  2. Step 2: Convert to fraction form
    74,728,153.78/112,084,662.42 = 20,146,256.76/x
  3. Step 3: Cross multiply
    74,728,153.78x = 112,084,662.42 × 20,146,256.76
  4. Step 4: Simplify right side
    74,728,153.78x = 2,258,086,387,971,243
  5. Step 5: Solve for x
    x = 2,258,086,387,971,243/74,728,153.78
  6. Step 6: Final answer
    x = 30,217,344.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.