Home / 578,185,467,915.05-797,915,080,936.95-317,772,407,562.20

Finding the Fourth Proportional to 578,185,467,915.05, 797,915,080,936.95 and 317,772,407,562.20

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Solution

The fourth proportional to 578,185,467,915.05, 797,915,080,936.95 and 317,772,407,562.20 is: 438,536,439,204.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,185,467,915.05 : 797,915,080,936.95 = 317,772,407,562.20 : x
  2. Step 2: Convert to fraction form
    578,185,467,915.05/797,915,080,936.95 = 317,772,407,562.20/x
  3. Step 3: Cross multiply
    578,185,467,915.05x = 797,915,080,936.95 × 317,772,407,562.20
  4. Step 4: Simplify right side
    578,185,467,915.05x = 253,555,396,299,522,278,686,720
  5. Step 5: Solve for x
    x = 253,555,396,299,522,278,686,720/578,185,467,915.05
  6. Step 6: Final answer
    x = 438,536,439,204.97

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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.