Home / 74,728,152.78-112,084,660.93-20,146,255.77

Finding the Fourth Proportional to 74,728,152.78, 112,084,660.93 and 20,146,255.77

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Solution

The fourth proportional to 74,728,152.78, 112,084,660.93 and 20,146,255.77 is: 30,217,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,728,152.78 : 112,084,660.93 = 20,146,255.77 : x
  2. Step 2: Convert to fraction form
    74,728,152.78/112,084,660.93 = 20,146,255.77/x
  3. Step 3: Cross multiply
    74,728,152.78x = 112,084,660.93 × 20,146,255.77
  4. Step 4: Simplify right side
    74,728,152.78x = 2,258,086,246,989,506
  5. Step 5: Solve for x
    x = 2,258,086,246,989,506/74,728,152.78
  6. Step 6: Final answer
    x = 30,217,343.30

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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.