Home / 689,951,611.72-952,118,674.50-376,670,685.16

Finding the Fourth Proportional to 689,951,611.72, 952,118,674.50 and 376,670,685.16

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Solution

The fourth proportional to 689,951,611.72, 952,118,674.50 and 376,670,685.16 is: 519,797,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,951,611.72 : 952,118,674.50 = 376,670,685.16 : x
  2. Step 2: Convert to fraction form
    689,951,611.72/952,118,674.50 = 376,670,685.16/x
  3. Step 3: Cross multiply
    689,951,611.72x = 952,118,674.50 × 376,670,685.16
  4. Step 4: Simplify right side
    689,951,611.72x = 358,635,193,477,546,048
  5. Step 5: Solve for x
    x = 358,635,193,477,546,048/689,951,611.72
  6. Step 6: Final answer
    x = 519,797,602.30

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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.