Home / 171,072,090.80-256,608,136.20-68,909,447.60

Finding the Fourth Proportional to 171,072,090.80, 256,608,136.20 and 68,909,447.60

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Solution

The fourth proportional to 171,072,090.80, 256,608,136.20 and 68,909,447.60 is: 103,364,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,090.80 : 256,608,136.20 = 68,909,447.60 : x
  2. Step 2: Convert to fraction form
    171,072,090.80/256,608,136.20 = 68,909,447.60/x
  3. Step 3: Cross multiply
    171,072,090.80x = 256,608,136.20 × 68,909,447.60
  4. Step 4: Simplify right side
    171,072,090.80x = 17,682,724,915,207,560
  5. Step 5: Solve for x
    x = 17,682,724,915,207,560/171,072,090.80
  6. Step 6: Final answer
    x = 103,364,171.40

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1.5x scale

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.