Home / 689,890,481.52-952,044,021.32-376,624,695.48

Finding the Fourth Proportional to 689,890,481.52, 952,044,021.32 and 376,624,695.48

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Solution

The fourth proportional to 689,890,481.52, 952,044,021.32 and 376,624,695.48 is: 519,739,435.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,890,481.52 : 952,044,021.32 = 376,624,695.48 : x
  2. Step 2: Convert to fraction form
    689,890,481.52/952,044,021.32 = 376,624,695.48/x
  3. Step 3: Cross multiply
    689,890,481.52x = 952,044,021.32 × 376,624,695.48
  4. Step 4: Simplify right side
    689,890,481.52x = 358,563,289,611,316,544
  5. Step 5: Solve for x
    x = 358,563,289,611,316,544/689,890,481.52
  6. Step 6: Final answer
    x = 519,739,435.77

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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.