Home / 65,231,969.62-90,020,175.78-35,863,801.78

Finding the Fourth Proportional to 65,231,969.62, 90,020,175.78 and 35,863,801.78

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Solution

The fourth proportional to 65,231,969.62, 90,020,175.78 and 35,863,801.78 is: 49,492,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,231,969.62 : 90,020,175.78 = 35,863,801.78 : x
  2. Step 2: Convert to fraction form
    65,231,969.62/90,020,175.78 = 35,863,801.78/x
  3. Step 3: Cross multiply
    65,231,969.62x = 90,020,175.78 × 35,863,801.78
  4. Step 4: Simplify right side
    65,231,969.62x = 3,228,465,740,374,677
  5. Step 5: Solve for x
    x = 3,228,465,740,374,677/65,231,969.62
  6. Step 6: Final answer
    x = 49,492,078.18

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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.