Home / 430,971,213.27-646,456,825.44-103,446,725.66

Finding the Fourth Proportional to 430,971,213.27, 646,456,825.44 and 103,446,725.66

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Solution

The fourth proportional to 430,971,213.27, 646,456,825.44 and 103,446,725.66 is: 155,170,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,971,213.27 : 646,456,825.44 = 103,446,725.66 : x
  2. Step 2: Convert to fraction form
    430,971,213.27/646,456,825.44 = 103,446,725.66/x
  3. Step 3: Cross multiply
    430,971,213.27x = 646,456,825.44 × 103,446,725.66
  4. Step 4: Simplify right side
    430,971,213.27x = 66,873,841,869,093,912
  5. Step 5: Solve for x
    x = 66,873,841,869,093,912/430,971,213.27
  6. Step 6: Final answer
    x = 155,170,089.81

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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.