Finding the Fourth Proportional to 1,318,592,934.26, 1,819,659,407.73 and 790,263,800.18
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Solution
The fourth proportional to 1,318,592,934.26, 1,819,659,407.73 and 790,263,800.18 is: 1,090,564,738.54
Step by Step Solution
- Step 1: Write the proportion equation
1,318,592,934.26 : 1,819,659,407.73 = 790,263,800.18 : x - Step 2: Convert to fraction form
1,318,592,934.26/1,819,659,407.73 = 790,263,800.18/x - Step 3: Cross multiply
1,318,592,934.26x = 1,819,659,407.73 × 790,263,800.18 - Step 4: Simplify right side
1,318,592,934.26x = 1,438,010,958,585,997,824 - Step 5: Solve for x
x = 1,438,010,958,585,997,824/1,318,592,934.26 - Step 6: Final answer
x = 1,090,564,738.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.