Home / 578,185,467,918.05-797,915,080,941.09-317,772,407,565.20

Finding the Fourth Proportional to 578,185,467,918.05, 797,915,080,941.09 and 317,772,407,565.20

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Solution

The fourth proportional to 578,185,467,918.05, 797,915,080,941.09 and 317,772,407,565.20 is: 438,536,439,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,185,467,918.05 : 797,915,080,941.09 = 317,772,407,565.20 : x
  2. Step 2: Convert to fraction form
    578,185,467,918.05/797,915,080,941.09 = 317,772,407,565.20/x
  3. Step 3: Cross multiply
    578,185,467,918.05x = 797,915,080,941.09 × 317,772,407,565.20
  4. Step 4: Simplify right side
    578,185,467,918.05x = 253,555,396,303,231,586,926,592
  5. Step 5: Solve for x
    x = 253,555,396,303,231,586,926,592/578,185,467,918.05
  6. Step 6: Final answer
    x = 438,536,439,209.11

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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.