Finding the Fourth Proportional to 3,915,482,849.62, 5,403,496,850.40 and 2,199,134,470.26
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Solution
The fourth proportional to 3,915,482,849.62, 5,403,496,850.40 and 2,199,134,470.26 is: 3,034,878,874.47
Step by Step Solution
- Step 1: Write the proportion equation
3,915,482,849.62 : 5,403,496,850.40 = 2,199,134,470.26 : x - Step 2: Convert to fraction form
3,915,482,849.62/5,403,496,850.40 = 2,199,134,470.26/x - Step 3: Cross multiply
3,915,482,849.62x = 5,403,496,850.40 × 2,199,134,470.26 - Step 4: Simplify right side
3,915,482,849.62x = 11,883,016,183,655,983,104 - Step 5: Solve for x
x = 11,883,016,183,655,983,104/3,915,482,849.62 - Step 6: Final answer
x = 3,034,878,874.47
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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.