Home / 80,136,241.47-120,173,720.31-43,725,170.34

Finding the Fourth Proportional to 80,136,241.47, 120,173,720.31 and 43,725,170.34

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Solution

The fourth proportional to 80,136,241.47, 120,173,720.31 and 43,725,170.34 is: 65,571,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,136,241.47 : 120,173,720.31 = 43,725,170.34 : x
  2. Step 2: Convert to fraction form
    80,136,241.47/120,173,720.31 = 43,725,170.34/x
  3. Step 3: Cross multiply
    80,136,241.47x = 120,173,720.31 × 43,725,170.34
  4. Step 4: Simplify right side
    80,136,241.47x = 5,254,616,390,946,268
  5. Step 5: Solve for x
    x = 5,254,616,390,946,268/80,136,241.47
  6. Step 6: Final answer
    x = 65,571,036.21

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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.