Home / 142,678,310.68-196,908,211.74-80,809,655.32

Finding the Fourth Proportional to 142,678,310.68, 196,908,211.74 and 80,809,655.32

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Solution

The fourth proportional to 142,678,310.68, 196,908,211.74 and 80,809,655.32 is: 111,524,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,678,310.68 : 196,908,211.74 = 80,809,655.32 : x
  2. Step 2: Convert to fraction form
    142,678,310.68/196,908,211.74 = 80,809,655.32/x
  3. Step 3: Cross multiply
    142,678,310.68x = 196,908,211.74 × 80,809,655.32
  4. Step 4: Simplify right side
    142,678,310.68x = 15,912,084,720,386,976
  5. Step 5: Solve for x
    x = 15,912,084,720,386,976/142,678,310.68
  6. Step 6: Final answer
    x = 111,524,201.85

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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.