Finding the Fourth Proportional to 268,583,678.20, 402,875,517.30 and 236,838,935.80
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Solution
The fourth proportional to 268,583,678.20, 402,875,517.30 and 236,838,935.80 is: 355,258,403.70
Step by Step Solution
- Step 1: Write the proportion equation
268,583,678.20 : 402,875,517.30 = 236,838,935.80 : x - Step 2: Convert to fraction form
268,583,678.20/402,875,517.30 = 236,838,935.80/x - Step 3: Cross multiply
268,583,678.20x = 402,875,517.30 × 236,838,935.80 - Step 4: Simplify right side
268,583,678.20x = 95,416,608,777,206,496 - Step 5: Solve for x
x = 95,416,608,777,206,496/268,583,678.20 - Step 6: Final answer
x = 355,258,403.70
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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.