Finding the Fourth Proportional to 268,627,896.90, 402,941,845.35 and 247,128,812.10
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Solution
The fourth proportional to 268,627,896.90, 402,941,845.35 and 247,128,812.10 is: 370,693,218.15
Step by Step Solution
- Step 1: Write the proportion equation
268,627,896.90 : 402,941,845.35 = 247,128,812.10 : x - Step 2: Convert to fraction form
268,627,896.90/402,941,845.35 = 247,128,812.10/x - Step 3: Cross multiply
268,627,896.90x = 402,941,845.35 × 247,128,812.10 - Step 4: Simplify right side
268,627,896.90x = 99,578,539,586,727,408 - Step 5: Solve for x
x = 99,578,539,586,727,408/268,627,896.90 - Step 6: Final answer
x = 370,693,218.15
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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.