Finding the Fourth Proportional to 920,761,296.24, 1,270,635,759.96 and 503,064,612.72
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Solution
The fourth proportional to 920,761,296.24, 1,270,635,759.96 and 503,064,612.72 is: 694,221,063.70
Step by Step Solution
- Step 1: Write the proportion equation
920,761,296.24 : 1,270,635,759.96 = 503,064,612.72 : x - Step 2: Convert to fraction form
920,761,296.24/1,270,635,759.96 = 503,064,612.72/x - Step 3: Cross multiply
920,761,296.24x = 1,270,635,759.96 × 503,064,612.72 - Step 4: Simplify right side
920,761,296.24x = 639,211,886,492,460,288 - Step 5: Solve for x
x = 639,211,886,492,460,288/920,761,296.24 - Step 6: Final answer
x = 694,221,063.70
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1.5x scale
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.