Home / 291,197,828.88-401,855,749.56-165,743,901.36

Finding the Fourth Proportional to 291,197,828.88, 401,855,749.56 and 165,743,901.36

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Solution

The fourth proportional to 291,197,828.88, 401,855,749.56 and 165,743,901.36 is: 228,728,146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,197,828.88 : 401,855,749.56 = 165,743,901.36 : x
  2. Step 2: Convert to fraction form
    291,197,828.88/401,855,749.56 = 165,743,901.36/x
  3. Step 3: Cross multiply
    291,197,828.88x = 401,855,749.56 × 165,743,901.36
  4. Step 4: Simplify right side
    291,197,828.88x = 66,605,139,716,021,512
  5. Step 5: Solve for x
    x = 66,605,139,716,021,512/291,197,828.88
  6. Step 6: Final answer
    x = 228,728,146.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.