Finding the Fourth Proportional to 1,626,691,582.80, 2,244,857,110.92 and 884,135,422.80
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Solution
The fourth proportional to 1,626,691,582.80, 2,244,857,110.92 and 884,135,422.80 is: 1,220,119,235.80
Step by Step Solution
- Step 1: Write the proportion equation
1,626,691,582.80 : 2,244,857,110.92 = 884,135,422.80 : x - Step 2: Convert to fraction form
1,626,691,582.80/2,244,857,110.92 = 884,135,422.80/x - Step 3: Cross multiply
1,626,691,582.80x = 2,244,857,110.92 × 884,135,422.80 - Step 4: Simplify right side
1,626,691,582.80x = 1,984,757,690,888,840,704 - Step 5: Solve for x
x = 1,984,757,690,888,840,704/1,626,691,582.80 - Step 6: Final answer
x = 1,220,119,235.80
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1.5x scale
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.