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Finding the Fourth Proportional to 1,019,936,700.80, 1,529,905,051.20 and 330,338,859.20

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Solution

The fourth proportional to 1,019,936,700.80, 1,529,905,051.20 and 330,338,859.20 is: 495,508,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,936,700.80 : 1,529,905,051.20 = 330,338,859.20 : x
  2. Step 2: Convert to fraction form
    1,019,936,700.80/1,529,905,051.20 = 330,338,859.20/x
  3. Step 3: Cross multiply
    1,019,936,700.80x = 1,529,905,051.20 × 330,338,859.20
  4. Step 4: Simplify right side
    1,019,936,700.80x = 505,387,089,297,725,568
  5. Step 5: Solve for x
    x = 505,387,089,297,725,568/1,019,936,700.80
  6. Step 6: Final answer
    x = 495,508,288.80

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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.