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Finding the Fourth Proportional to 404,292,786.17, 557,924,038.49 and 218,653,801.25

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Solution

The fourth proportional to 404,292,786.17, 557,924,038.49 and 218,653,801.25 is: 301,742,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,292,786.17 : 557,924,038.49 = 218,653,801.25 : x
  2. Step 2: Convert to fraction form
    404,292,786.17/557,924,038.49 = 218,653,801.25/x
  3. Step 3: Cross multiply
    404,292,786.17x = 557,924,038.49 × 218,653,801.25
  4. Step 4: Simplify right side
    404,292,786.17x = 121,992,211,822,346,816
  5. Step 5: Solve for x
    x = 121,992,211,822,346,816/404,292,786.17
  6. Step 6: Final answer
    x = 301,742,242.25

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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.