Home / 171,926,300.30-257,889,450.45-85,832,858.30

Finding the Fourth Proportional to 171,926,300.30, 257,889,450.45 and 85,832,858.30

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Solution

The fourth proportional to 171,926,300.30, 257,889,450.45 and 85,832,858.30 is: 128,749,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,926,300.30 : 257,889,450.45 = 85,832,858.30 : x
  2. Step 2: Convert to fraction form
    171,926,300.30/257,889,450.45 = 85,832,858.30/x
  3. Step 3: Cross multiply
    171,926,300.30x = 257,889,450.45 × 85,832,858.30
  4. Step 4: Simplify right side
    171,926,300.30x = 22,135,388,657,539,720
  5. Step 5: Solve for x
    x = 22,135,388,657,539,720/171,926,300.30
  6. Step 6: Final answer
    x = 128,749,287.45

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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.