Finding the Fourth Proportional to 310,262,755.88, 428,165,555.94 and 171,038,511.08
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Solution
The fourth proportional to 310,262,755.88, 428,165,555.94 and 171,038,511.08 is: 236,034,773.09
Step by Step Solution
- Step 1: Write the proportion equation
310,262,755.88 : 428,165,555.94 = 171,038,511.08 : x - Step 2: Convert to fraction form
310,262,755.88/428,165,555.94 = 171,038,511.08/x - Step 3: Cross multiply
310,262,755.88x = 428,165,555.94 × 171,038,511.08 - Step 4: Simplify right side
310,262,755.88x = 73,232,799,183,718,048 - Step 5: Solve for x
x = 73,232,799,183,718,048/310,262,755.88 - Step 6: Final answer
x = 236,034,773.09
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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.