Home / 517,255,990.88-775,210,302.84-210,189,118.64

Finding the Fourth Proportional to 517,255,990.88, 775,210,302.84 and 210,189,118.64

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Solution

The fourth proportional to 517,255,990.88, 775,210,302.84 and 210,189,118.64 is: 315,009,923.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,255,990.88 : 775,210,302.84 = 210,189,118.64 : x
  2. Step 2: Convert to fraction form
    517,255,990.88/775,210,302.84 = 210,189,118.64/x
  3. Step 3: Cross multiply
    517,255,990.88x = 775,210,302.84 × 210,189,118.64
  4. Step 4: Simplify right side
    517,255,990.88x = 162,940,770,315,269,504
  5. Step 5: Solve for x
    x = 162,940,770,315,269,504/517,255,990.88
  6. Step 6: Final answer
    x = 315,009,923.88

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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.