Home / 320,081,215.12-480,066,185.40-89,995,693.20

Finding the Fourth Proportional to 320,081,215.12, 480,066,185.40 and 89,995,693.20

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Solution

The fourth proportional to 320,081,215.12, 480,066,185.40 and 89,995,693.20 is: 134,977,896.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,081,215.12 : 480,066,185.40 = 89,995,693.20 : x
  2. Step 2: Convert to fraction form
    320,081,215.12/480,066,185.40 = 89,995,693.20/x
  3. Step 3: Cross multiply
    320,081,215.12x = 480,066,185.40 × 89,995,693.20
  4. Step 4: Simplify right side
    320,081,215.12x = 43,203,889,136,952,720
  5. Step 5: Solve for x
    x = 43,203,889,136,952,720/320,081,215.12
  6. Step 6: Final answer
    x = 134,977,896.53

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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.