Finding the Fourth Proportional to 1,398,815,657.08, 1,930,534,882.68 and 796,132,821.80
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Solution
The fourth proportional to 1,398,815,657.08, 1,930,534,882.68 and 796,132,821.80 is: 1,098,759,637.09
Step by Step Solution
- Step 1: Write the proportion equation
1,398,815,657.08 : 1,930,534,882.68 = 796,132,821.80 : x - Step 2: Convert to fraction form
1,398,815,657.08/1,930,534,882.68 = 796,132,821.80/x - Step 3: Cross multiply
1,398,815,657.08x = 1,930,534,882.68 × 796,132,821.80 - Step 4: Simplify right side
1,398,815,657.08x = 1,536,962,183,731,360,256 - Step 5: Solve for x
x = 1,536,962,183,731,360,256/1,398,815,657.08 - Step 6: Final answer
x = 1,098,759,637.09
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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.