Finding the Fourth Proportional to 1,214,677,271.80, 1,822,015,907.70 and 889,802,212.60
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Solution
The fourth proportional to 1,214,677,271.80, 1,822,015,907.70 and 889,802,212.60 is: 1,334,703,318.90
Step by Step Solution
- Step 1: Write the proportion equation
1,214,677,271.80 : 1,822,015,907.70 = 889,802,212.60 : x - Step 2: Convert to fraction form
1,214,677,271.80/1,822,015,907.70 = 889,802,212.60/x - Step 3: Cross multiply
1,214,677,271.80x = 1,822,015,907.70 × 889,802,212.60 - Step 4: Simplify right side
1,214,677,271.80x = 1,621,233,786,063,857,408 - Step 5: Solve for x
x = 1,621,233,786,063,857,408/1,214,677,271.80 - Step 6: Final answer
x = 1,334,703,318.90
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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.