Home / 291,307,791.30-436,961,935.73-81,210,148.04

Finding the Fourth Proportional to 291,307,791.30, 436,961,935.73 and 81,210,148.04

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Solution

The fourth proportional to 291,307,791.30, 436,961,935.73 and 81,210,148.04 is: 121,815,291.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,307,791.30 : 436,961,935.73 = 81,210,148.04 : x
  2. Step 2: Convert to fraction form
    291,307,791.30/436,961,935.73 = 81,210,148.04/x
  3. Step 3: Cross multiply
    291,307,791.30x = 436,961,935.73 × 81,210,148.04
  4. Step 4: Simplify right side
    291,307,791.30x = 35,485,743,485,887,404
  5. Step 5: Solve for x
    x = 35,485,743,485,887,404/291,307,791.30
  6. Step 6: Final answer
    x = 121,815,291.41

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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.