Finding the Fourth Proportional to 1,388,954,695.30, 1,916,760,201.14 and 824,552,767.68
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Solution
The fourth proportional to 1,388,954,695.30, 1,916,760,201.14 and 824,552,767.68 is: 1,137,884,435.09
Step by Step Solution
- Step 1: Write the proportion equation
1,388,954,695.30 : 1,916,760,201.14 = 824,552,767.68 : x - Step 2: Convert to fraction form
1,388,954,695.30/1,916,760,201.14 = 824,552,767.68/x - Step 3: Cross multiply
1,388,954,695.30x = 1,916,760,201.14 × 824,552,767.68 - Step 4: Simplify right side
1,388,954,695.30x = 1,580,469,928,828,860,416 - Step 5: Solve for x
x = 1,580,469,928,828,860,416/1,388,954,695.30 - Step 6: Final answer
x = 1,137,884,435.09
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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.