Home / 351,290,661.88-484,622,137.74-212,016,903.16

Finding the Fourth Proportional to 351,290,661.88, 484,622,137.74 and 212,016,903.16

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Solution

The fourth proportional to 351,290,661.88, 484,622,137.74 and 212,016,903.16 is: 292,487,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,290,661.88 : 484,622,137.74 = 212,016,903.16 : x
  2. Step 2: Convert to fraction form
    351,290,661.88/484,622,137.74 = 212,016,903.16/x
  3. Step 3: Cross multiply
    351,290,661.88x = 484,622,137.74 × 212,016,903.16
  4. Step 4: Simplify right side
    351,290,661.88x = 102,748,084,846,413,760
  5. Step 5: Solve for x
    x = 102,748,084,846,413,760/351,290,661.88
  6. Step 6: Final answer
    x = 292,487,378.68

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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.