Home / 199,621,038.20-275,487,609.28-120,261,081.82

Finding the Fourth Proportional to 199,621,038.20, 275,487,609.28 and 120,261,081.82

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Solution

The fourth proportional to 199,621,038.20, 275,487,609.28 and 120,261,081.82 is: 165,966,664.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,621,038.20 : 275,487,609.28 = 120,261,081.82 : x
  2. Step 2: Convert to fraction form
    199,621,038.20/275,487,609.28 = 120,261,081.82/x
  3. Step 3: Cross multiply
    199,621,038.20x = 275,487,609.28 × 120,261,081.82
  4. Step 4: Simplify right side
    199,621,038.20x = 33,130,437,919,028,896
  5. Step 5: Solve for x
    x = 33,130,437,919,028,896/199,621,038.20
  6. Step 6: Final answer
    x = 165,966,664.73

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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.