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Finding the Fourth Proportional to 519,058,858.88, 778,489,062.72 and 155,553,214.88

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Solution

The fourth proportional to 519,058,858.88, 778,489,062.72 and 155,553,214.88 is: 233,300,086.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,058,858.88 : 778,489,062.72 = 155,553,214.88 : x
  2. Step 2: Convert to fraction form
    519,058,858.88/778,489,062.72 = 155,553,214.88/x
  3. Step 3: Cross multiply
    519,058,858.88x = 778,489,062.72 × 155,553,214.88
  4. Step 4: Simplify right side
    519,058,858.88x = 121,096,476,455,013,952
  5. Step 5: Solve for x
    x = 121,096,476,455,013,952/519,058,858.88
  6. Step 6: Final answer
    x = 233,300,086.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.