Finding the Fourth Proportional to 1,019,936,542.80, 1,529,904,814.20 and 330,338,701.20
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Solution
The fourth proportional to 1,019,936,542.80, 1,529,904,814.20 and 330,338,701.20 is: 495,508,051.80
Step by Step Solution
- Step 1: Write the proportion equation
1,019,936,542.80 : 1,529,904,814.20 = 330,338,701.20 : x - Step 2: Convert to fraction form
1,019,936,542.80/1,529,904,814.20 = 330,338,701.20/x - Step 3: Cross multiply
1,019,936,542.80x = 1,529,904,814.20 × 330,338,701.20 - Step 4: Simplify right side
1,019,936,542.80x = 505,386,769,282,455,296 - Step 5: Solve for x
x = 505,386,769,282,455,296/1,019,936,542.80 - Step 6: Final answer
x = 495,508,051.80
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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.