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Finding the Fourth Proportional to 545,751,015.80, 818,626,523.70 and 218,383,359.80

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Solution

The fourth proportional to 545,751,015.80, 818,626,523.70 and 218,383,359.80 is: 327,575,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,751,015.80 : 818,626,523.70 = 218,383,359.80 : x
  2. Step 2: Convert to fraction form
    545,751,015.80/818,626,523.70 = 218,383,359.80/x
  3. Step 3: Cross multiply
    545,751,015.80x = 818,626,523.70 × 218,383,359.80
  4. Step 4: Simplify right side
    545,751,015.80x = 178,774,410,667,000,352
  5. Step 5: Solve for x
    x = 178,774,410,667,000,352/545,751,015.80
  6. Step 6: Final answer
    x = 327,575,039.70

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1.5x scale

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.