Finding the Fourth Proportional to 908,134,815.80, 1,362,202,223.70 and 793,343,559.80
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Solution
The fourth proportional to 908,134,815.80, 1,362,202,223.70 and 793,343,559.80 is: 1,190,015,339.70
Step by Step Solution
- Step 1: Write the proportion equation
908,134,815.80 : 1,362,202,223.70 = 793,343,559.80 : x - Step 2: Convert to fraction form
908,134,815.80/1,362,202,223.70 = 793,343,559.80/x - Step 3: Cross multiply
908,134,815.80x = 1,362,202,223.70 × 793,343,559.80 - Step 4: Simplify right side
908,134,815.80x = 1,080,694,361,317,633,920 - Step 5: Solve for x
x = 1,080,694,361,317,633,920/908,134,815.80 - Step 6: Final answer
x = 1,190,015,339.70
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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.