Home / 101,731,278.76-140,390,164.38-55,322,541.16

Finding the Fourth Proportional to 101,731,278.76, 140,390,164.38 and 55,322,541.16

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Solution

The fourth proportional to 101,731,278.76, 140,390,164.38 and 55,322,541.16 is: 76,345,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,731,278.76 : 140,390,164.38 = 55,322,541.16 : x
  2. Step 2: Convert to fraction form
    101,731,278.76/140,390,164.38 = 55,322,541.16/x
  3. Step 3: Cross multiply
    101,731,278.76x = 140,390,164.38 × 55,322,541.16
  4. Step 4: Simplify right side
    101,731,278.76x = 7,766,740,647,371,715
  5. Step 5: Solve for x
    x = 7,766,740,647,371,715/101,731,278.76
  6. Step 6: Final answer
    x = 76,345,650.44

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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.