Home / 407,084,941.48-561,776,794.08-221,445,514.36

Finding the Fourth Proportional to 407,084,941.48, 561,776,794.08 and 221,445,514.36

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Solution

The fourth proportional to 407,084,941.48, 561,776,794.08 and 221,445,514.36 is: 305,594,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,084,941.48 : 561,776,794.08 = 221,445,514.36 : x
  2. Step 2: Convert to fraction form
    407,084,941.48/561,776,794.08 = 221,445,514.36/x
  3. Step 3: Cross multiply
    407,084,941.48x = 561,776,794.08 × 221,445,514.36
  4. Step 4: Simplify right side
    407,084,941.48x = 124,402,951,120,557,424
  5. Step 5: Solve for x
    x = 124,402,951,120,557,424/407,084,941.48
  6. Step 6: Final answer
    x = 305,594,578.54

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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.