Home / 289,702,419-400,842,094.08-252,610,046.16

Finding the Fourth Proportional to 289,702,419, 400,842,094.08 and 252,610,046.16

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Solution

The fourth proportional to 289,702,419, 400,842,094.08 and 252,610,046.16 is: 349,519,828.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,702,419 : 400,842,094.08 = 252,610,046.16 : x
  2. Step 2: Convert to fraction form
    289,702,419/400,842,094.08 = 252,610,046.16/x
  3. Step 3: Cross multiply
    289,702,419x = 400,842,094.08 × 252,610,046.16
  4. Step 4: Simplify right side
    289,702,419x = 101,256,739,888,419,856
  5. Step 5: Solve for x
    x = 101,256,739,888,419,856/289,702,419
  6. Step 6: Final answer
    x = 349,519,828.79

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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.