Finding the Fourth Proportional to 1,618,927,645.80, 2,234,135,553.66 and 949,884,073.68
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Solution
The fourth proportional to 1,618,927,645.80, 2,234,135,553.66 and 949,884,073.68 is: 1,310,849,058.86
Step by Step Solution
- Step 1: Write the proportion equation
1,618,927,645.80 : 2,234,135,553.66 = 949,884,073.68 : x - Step 2: Convert to fraction form
1,618,927,645.80/2,234,135,553.66 = 949,884,073.68/x - Step 3: Cross multiply
1,618,927,645.80x = 2,234,135,553.66 × 949,884,073.68 - Step 4: Simplify right side
1,618,927,645.80x = 2,122,169,780,863,882,752 - Step 5: Solve for x
x = 2,122,169,780,863,882,752/1,618,927,645.80 - Step 6: Final answer
x = 1,310,849,058.86
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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.