Home / 305,284,959.60-421,254,915.48-206,380,857.84

Finding the Fourth Proportional to 305,284,959.60, 421,254,915.48 and 206,380,857.84

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Solution

The fourth proportional to 305,284,959.60, 421,254,915.48 and 206,380,857.84 is: 284,779,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,284,959.60 : 421,254,915.48 = 206,380,857.84 : x
  2. Step 2: Convert to fraction form
    305,284,959.60/421,254,915.48 = 206,380,857.84/x
  3. Step 3: Cross multiply
    305,284,959.60x = 421,254,915.48 × 206,380,857.84
  4. Step 4: Simplify right side
    305,284,959.60x = 86,938,950,826,079,104
  5. Step 5: Solve for x
    x = 86,938,950,826,079,104/305,284,959.60
  6. Step 6: Final answer
    x = 284,779,672.54

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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.