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Finding the Fourth Proportional to 545,751,024.80, 818,626,537.20 and 218,064,504.20

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Solution

The fourth proportional to 545,751,024.80, 818,626,537.20 and 218,064,504.20 is: 327,096,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,751,024.80 : 818,626,537.20 = 218,064,504.20 : x
  2. Step 2: Convert to fraction form
    545,751,024.80/818,626,537.20 = 218,064,504.20/x
  3. Step 3: Cross multiply
    545,751,024.80x = 818,626,537.20 × 218,064,504.20
  4. Step 4: Simplify right side
    545,751,024.80x = 178,513,389,959,480,864
  5. Step 5: Solve for x
    x = 178,513,389,959,480,864/545,751,024.80
  6. Step 6: Final answer
    x = 327,096,756.30

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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.