Finding the Fourth Proportional to 826,489,480.71, 1,140,555,504.18 and 455,211,512.09
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Solution
The fourth proportional to 826,489,480.71, 1,140,555,504.18 and 455,211,512.09 is: 628,191,898.14
Step by Step Solution
- Step 1: Write the proportion equation
826,489,480.71 : 1,140,555,504.18 = 455,211,512.09 : x - Step 2: Convert to fraction form
826,489,480.71/1,140,555,504.18 = 455,211,512.09/x - Step 3: Cross multiply
826,489,480.71x = 1,140,555,504.18 × 455,211,512.09 - Step 4: Simplify right side
826,489,480.71x = 519,193,995,680,350,144 - Step 5: Solve for x
x = 519,193,995,680,350,144/826,489,480.71 - Step 6: Final answer
x = 628,191,898.14
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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.