Home / 56,757,450.40-85,136,175.60-20,881,405.60

Finding the Fourth Proportional to 56,757,450.40, 85,136,175.60 and 20,881,405.60

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Solution

The fourth proportional to 56,757,450.40, 85,136,175.60 and 20,881,405.60 is: 31,322,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,757,450.40 : 85,136,175.60 = 20,881,405.60 : x
  2. Step 2: Convert to fraction form
    56,757,450.40/85,136,175.60 = 20,881,405.60/x
  3. Step 3: Cross multiply
    56,757,450.40x = 85,136,175.60 × 20,881,405.60
  4. Step 4: Simplify right side
    56,757,450.40x = 1,777,763,013,936,423.25
  5. Step 5: Solve for x
    x = 1,777,763,013,936,423.25/56,757,450.40
  6. Step 6: Final answer
    x = 31,322,108.40

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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.