Home / 309,972,024.78-464,958,676.86-291,031,467.54

Finding the Fourth Proportional to 309,972,024.78, 464,958,676.86 and 291,031,467.54

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Solution

The fourth proportional to 309,972,024.78, 464,958,676.86 and 291,031,467.54 is: 436,547,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,972,024.78 : 464,958,676.86 = 291,031,467.54 : x
  2. Step 2: Convert to fraction form
    309,972,024.78/464,958,676.86 = 291,031,467.54/x
  3. Step 3: Cross multiply
    309,972,024.78x = 464,958,676.86 × 291,031,467.54
  4. Step 4: Simplify right side
    309,972,024.78x = 135,317,606,072,022,448
  5. Step 5: Solve for x
    x = 135,317,606,072,022,448/309,972,024.78
  6. Step 6: Final answer
    x = 436,547,801.91

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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.