Home / 53,419,093.60-80,128,640.40-21,060,241.60

Finding the Fourth Proportional to 53,419,093.60, 80,128,640.40 and 21,060,241.60

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Solution

The fourth proportional to 53,419,093.60, 80,128,640.40 and 21,060,241.60 is: 31,590,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,419,093.60 : 80,128,640.40 = 21,060,241.60 : x
  2. Step 2: Convert to fraction form
    53,419,093.60/80,128,640.40 = 21,060,241.60/x
  3. Step 3: Cross multiply
    53,419,093.60x = 80,128,640.40 × 21,060,241.60
  4. Step 4: Simplify right side
    53,419,093.60x = 1,687,528,525,903,521
  5. Step 5: Solve for x
    x = 1,687,528,525,903,521/53,419,093.60
  6. Step 6: Final answer
    x = 31,590,362.40

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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.