Home / 436,726,515.20-655,089,772.80-207,144,003.20

Finding the Fourth Proportional to 436,726,515.20, 655,089,772.80 and 207,144,003.20

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Solution

The fourth proportional to 436,726,515.20, 655,089,772.80 and 207,144,003.20 is: 310,716,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,726,515.20 : 655,089,772.80 = 207,144,003.20 : x
  2. Step 2: Convert to fraction form
    436,726,515.20/655,089,772.80 = 207,144,003.20/x
  3. Step 3: Cross multiply
    436,726,515.20x = 655,089,772.80 × 207,144,003.20
  4. Step 4: Simplify right side
    436,726,515.20x = 135,697,917,993,170,448
  5. Step 5: Solve for x
    x = 135,697,917,993,170,448/436,726,515.20
  6. Step 6: Final answer
    x = 310,716,004.80

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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.