Finding the Fourth Proportional to 1,605,626,343.92, 2,405,588,623.68 and 670,891,471.76
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Solution
The fourth proportional to 1,605,626,343.92, 2,405,588,623.68 and 670,891,471.76 is: 1,005,145,996.95
Step by Step Solution
- Step 1: Write the proportion equation
1,605,626,343.92 : 2,405,588,623.68 = 670,891,471.76 : x - Step 2: Convert to fraction form
1,605,626,343.92/2,405,588,623.68 = 670,891,471.76/x - Step 3: Cross multiply
1,605,626,343.92x = 2,405,588,623.68 × 670,891,471.76 - Step 4: Simplify right side
1,605,626,343.92x = 1,613,888,892,189,787,904 - Step 5: Solve for x
x = 1,613,888,892,189,787,904/1,605,626,343.92 - Step 6: Final answer
x = 1,005,145,996.95
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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.