Finding the Fourth Proportional to 469,905,331.09, 648,431,394.20 and 271,679,600.29
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Solution
The fourth proportional to 469,905,331.09, 648,431,394.20 and 271,679,600.29 is: 374,895,899.95
Step by Step Solution
- Step 1: Write the proportion equation
469,905,331.09 : 648,431,394.20 = 271,679,600.29 : x - Step 2: Convert to fraction form
469,905,331.09/648,431,394.20 = 271,679,600.29/x - Step 3: Cross multiply
469,905,331.09x = 648,431,394.20 × 271,679,600.29 - Step 4: Simplify right side
469,905,331.09x = 176,165,581,991,743,456 - Step 5: Solve for x
x = 176,165,581,991,743,456/469,905,331.09 - Step 6: Final answer
x = 374,895,899.95
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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.