Finding the Fourth Proportional to 1,605,626,341.92, 2,405,588,620.68 and 670,891,469.76
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Solution
The fourth proportional to 1,605,626,341.92, 2,405,588,620.68 and 670,891,469.76 is: 1,005,145,993.95
Step by Step Solution
- Step 1: Write the proportion equation
1,605,626,341.92 : 2,405,588,620.68 = 670,891,469.76 : x - Step 2: Convert to fraction form
1,605,626,341.92/2,405,588,620.68 = 670,891,469.76/x - Step 3: Cross multiply
1,605,626,341.92x = 2,405,588,620.68 × 670,891,469.76 - Step 4: Simplify right side
1,605,626,341.92x = 1,613,888,885,365,936,128 - Step 5: Solve for x
x = 1,613,888,885,365,936,128/1,605,626,341.92 - Step 6: Final answer
x = 1,005,145,993.95
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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.