Home / 528,305,185.82-729,128,416.84-319,462,823

Finding the Fourth Proportional to 528,305,185.82, 729,128,416.84 and 319,462,823

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Solution

The fourth proportional to 528,305,185.82, 729,128,416.84 and 319,462,823 is: 440,899,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,305,185.82 : 729,128,416.84 = 319,462,823 : x
  2. Step 2: Convert to fraction form
    528,305,185.82/729,128,416.84 = 319,462,823/x
  3. Step 3: Cross multiply
    528,305,185.82x = 729,128,416.84 × 319,462,823
  4. Step 4: Simplify right side
    528,305,185.82x = 232,929,422,373,227,136
  5. Step 5: Solve for x
    x = 232,929,422,373,227,136/528,305,185.82
  6. Step 6: Final answer
    x = 440,899,367.69

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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.