Home / 313,380,999.40-432,009,990.36-219,002,129.80

Finding the Fourth Proportional to 313,380,999.40, 432,009,990.36 and 219,002,129.80

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Solution

The fourth proportional to 313,380,999.40, 432,009,990.36 and 219,002,129.80 is: 301,904,417.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,380,999.40 : 432,009,990.36 = 219,002,129.80 : x
  2. Step 2: Convert to fraction form
    313,380,999.40/432,009,990.36 = 219,002,129.80/x
  3. Step 3: Cross multiply
    313,380,999.40x = 432,009,990.36 × 219,002,129.80
  4. Step 4: Simplify right side
    313,380,999.40x = 94,611,107,983,717,472
  5. Step 5: Solve for x
    x = 94,611,107,983,717,472/313,380,999.40
  6. Step 6: Final answer
    x = 301,904,417.19

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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.