Home / 689,890,481.15-952,044,020.80-376,624,695.11

Finding the Fourth Proportional to 689,890,481.15, 952,044,020.80 and 376,624,695.11

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Solution

The fourth proportional to 689,890,481.15, 952,044,020.80 and 376,624,695.11 is: 519,739,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,890,481.15 : 952,044,020.80 = 376,624,695.11 : x
  2. Step 2: Convert to fraction form
    689,890,481.15/952,044,020.80 = 376,624,695.11/x
  3. Step 3: Cross multiply
    689,890,481.15x = 952,044,020.80 × 376,624,695.11
  4. Step 4: Simplify right side
    689,890,481.15x = 358,563,289,059,396,736
  5. Step 5: Solve for x
    x = 358,563,289,059,396,736/689,890,481.15
  6. Step 6: Final answer
    x = 519,739,435.26

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1.5x scale

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.