Home / 290,259,558.20-435,228,724.06-115,205,254.76

Finding the Fourth Proportional to 290,259,558.20, 435,228,724.06 and 115,205,254.76

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Solution

The fourth proportional to 290,259,558.20, 435,228,724.06 and 115,205,254.76 is: 172,744,134.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,259,558.20 : 435,228,724.06 = 115,205,254.76 : x
  2. Step 2: Convert to fraction form
    290,259,558.20/435,228,724.06 = 115,205,254.76/x
  3. Step 3: Cross multiply
    290,259,558.20x = 435,228,724.06 × 115,205,254.76
  4. Step 4: Simplify right side
    290,259,558.20x = 50,140,636,035,002,104
  5. Step 5: Solve for x
    x = 50,140,636,035,002,104/290,259,558.20
  6. Step 6: Final answer
    x = 172,744,134.06

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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.