Home / 65,231,961.68-90,020,164.80-35,863,793.84

Finding the Fourth Proportional to 65,231,961.68, 90,020,164.80 and 35,863,793.84

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Solution

The fourth proportional to 65,231,961.68, 90,020,164.80 and 35,863,793.84 is: 49,492,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,231,961.68 : 90,020,164.80 = 35,863,793.84 : x
  2. Step 2: Convert to fraction form
    65,231,961.68/90,020,164.80 = 35,863,793.84/x
  3. Step 3: Cross multiply
    65,231,961.68x = 90,020,164.80 × 35,863,793.84
  4. Step 4: Simplify right side
    65,231,961.68x = 3,228,464,631,830,025
  5. Step 5: Solve for x
    x = 3,228,464,631,830,025/65,231,961.68
  6. Step 6: Final answer
    x = 49,492,067.21

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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.