Home / 531,467,999.60-797,201,999.40-395,419,103.60

Finding the Fourth Proportional to 531,467,999.60, 797,201,999.40 and 395,419,103.60

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Solution

The fourth proportional to 531,467,999.60, 797,201,999.40 and 395,419,103.60 is: 593,128,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,467,999.60 : 797,201,999.40 = 395,419,103.60 : x
  2. Step 2: Convert to fraction form
    531,467,999.60/797,201,999.40 = 395,419,103.60/x
  3. Step 3: Cross multiply
    531,467,999.60x = 797,201,999.40 × 395,419,103.60
  4. Step 4: Simplify right side
    531,467,999.60x = 315,228,899,990,875,776
  5. Step 5: Solve for x
    x = 315,228,899,990,875,776/531,467,999.60
  6. Step 6: Final answer
    x = 593,128,655.40

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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.