Home / 528,305,222.52-729,128,467.52-319,462,859.76

Finding the Fourth Proportional to 528,305,222.52, 729,128,467.52 and 319,462,859.76

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Solution

The fourth proportional to 528,305,222.52, 729,128,467.52 and 319,462,859.76 is: 440,899,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,305,222.52 : 729,128,467.52 = 319,462,859.76 : x
  2. Step 2: Convert to fraction form
    528,305,222.52/729,128,467.52 = 319,462,859.76/x
  3. Step 3: Cross multiply
    528,305,222.52x = 729,128,467.52 × 319,462,859.76
  4. Step 4: Simplify right side
    528,305,222.52x = 232,929,465,366,365,472
  5. Step 5: Solve for x
    x = 232,929,465,366,365,472/528,305,222.52
  6. Step 6: Final answer
    x = 440,899,418.44

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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.