Finding the Fourth Proportional to 247,212,881.80, 370,878,371.70 and 74,691,386.80
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Solution
The fourth proportional to 247,212,881.80, 370,878,371.70 and 74,691,386.80 is: 112,054,920.90
Step by Step Solution
- Step 1: Write the proportion equation
247,212,881.80 : 370,878,371.70 = 74,691,386.80 : x - Step 2: Convert to fraction form
247,212,881.80/370,878,371.70 = 74,691,386.80/x - Step 3: Cross multiply
247,212,881.80x = 370,878,371.70 × 74,691,386.80 - Step 4: Simplify right side
247,212,881.80x = 27,701,419,916,398,872 - Step 5: Solve for x
x = 27,701,419,916,398,872/247,212,881.80 - Step 6: Final answer
x = 112,054,920.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.