Finding the Fourth Proportional to 1,008,021,586.20, 1,512,032,379.30 and 904,709,455.80
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Solution
The fourth proportional to 1,008,021,586.20, 1,512,032,379.30 and 904,709,455.80 is: 1,357,064,183.70
Step by Step Solution
- Step 1: Write the proportion equation
1,008,021,586.20 : 1,512,032,379.30 = 904,709,455.80 : x - Step 2: Convert to fraction form
1,008,021,586.20/1,512,032,379.30 = 904,709,455.80/x - Step 3: Cross multiply
1,008,021,586.20x = 1,512,032,379.30 × 904,709,455.80 - Step 4: Simplify right side
1,008,021,586.20x = 1,367,949,991,028,482,048 - Step 5: Solve for x
x = 1,367,949,991,028,482,048/1,008,021,586.20 - Step 6: Final answer
x = 1,357,064,183.70
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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.