Finding the Fourth Proportional to 637,994,470.68, 880,596,182.61 and 415,530,512.46
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Solution
The fourth proportional to 637,994,470.68, 880,596,182.61 and 415,530,512.46 is: 573,538,799.86
Step by Step Solution
- Step 1: Write the proportion equation
637,994,470.68 : 880,596,182.61 = 415,530,512.46 : x - Step 2: Convert to fraction form
637,994,470.68/880,596,182.61 = 415,530,512.46/x - Step 3: Cross multiply
637,994,470.68x = 880,596,182.61 × 415,530,512.46 - Step 4: Simplify right side
637,994,470.68x = 365,914,583,030,253,056 - Step 5: Solve for x
x = 365,914,583,030,253,056/637,994,470.68 - Step 6: Final answer
x = 573,538,799.86
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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.