Home / 363,383,999.40-545,075,999.10-210,328,991.40

Finding the Fourth Proportional to 363,383,999.40, 545,075,999.10 and 210,328,991.40

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Solution

The fourth proportional to 363,383,999.40, 545,075,999.10 and 210,328,991.40 is: 315,493,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,383,999.40 : 545,075,999.10 = 210,328,991.40 : x
  2. Step 2: Convert to fraction form
    363,383,999.40/545,075,999.10 = 210,328,991.40/x
  3. Step 3: Cross multiply
    363,383,999.40x = 545,075,999.10 × 210,328,991.40
  4. Step 4: Simplify right side
    363,383,999.40x = 114,645,285,127,050,320
  5. Step 5: Solve for x
    x = 114,645,285,127,050,320/363,383,999.40
  6. Step 6: Final answer
    x = 315,493,487.10

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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.