Home / 528,305,221.52-729,128,466.14-319,462,858.76

Finding the Fourth Proportional to 528,305,221.52, 729,128,466.14 and 319,462,858.76

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Solution

The fourth proportional to 528,305,221.52, 729,128,466.14 and 319,462,858.76 is: 440,899,417.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,305,221.52 : 729,128,466.14 = 319,462,858.76 : x
  2. Step 2: Convert to fraction form
    528,305,221.52/729,128,466.14 = 319,462,858.76/x
  3. Step 3: Cross multiply
    528,305,221.52x = 729,128,466.14 × 319,462,858.76
  4. Step 4: Simplify right side
    528,305,221.52x = 232,929,464,196,378,240
  5. Step 5: Solve for x
    x = 232,929,464,196,378,240/528,305,221.52
  6. Step 6: Final answer
    x = 440,899,417.06

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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.