Home / 528,305,220.52-729,128,464.76-319,462,857.76

Finding the Fourth Proportional to 528,305,220.52, 729,128,464.76 and 319,462,857.76

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Solution

The fourth proportional to 528,305,220.52, 729,128,464.76 and 319,462,857.76 is: 440,899,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,305,220.52 : 729,128,464.76 = 319,462,857.76 : x
  2. Step 2: Convert to fraction form
    528,305,220.52/729,128,464.76 = 319,462,857.76/x
  3. Step 3: Cross multiply
    528,305,220.52x = 729,128,464.76 × 319,462,857.76
  4. Step 4: Simplify right side
    528,305,220.52x = 232,929,463,026,391,040
  5. Step 5: Solve for x
    x = 232,929,463,026,391,040/528,305,220.52
  6. Step 6: Final answer
    x = 440,899,415.68

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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.