Home / 305,284,960.60-421,254,916.86-206,380,858.84

Finding the Fourth Proportional to 305,284,960.60, 421,254,916.86 and 206,380,858.84

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Solution

The fourth proportional to 305,284,960.60, 421,254,916.86 and 206,380,858.84 is: 284,779,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,284,960.60 : 421,254,916.86 = 206,380,858.84 : x
  2. Step 2: Convert to fraction form
    305,284,960.60/421,254,916.86 = 206,380,858.84/x
  3. Step 3: Cross multiply
    305,284,960.60x = 421,254,916.86 × 206,380,858.84
  4. Step 4: Simplify right side
    305,284,960.60x = 86,938,951,532,139,600
  5. Step 5: Solve for x
    x = 86,938,951,532,139,600/305,284,960.60
  6. Step 6: Final answer
    x = 284,779,673.92

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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.