Finding the Fourth Proportional to 28,635,182.38, 39,516,558.18 and 15,758,126.38
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Solution
The fourth proportional to 28,635,182.38, 39,516,558.18 and 15,758,126.38 is: 21,746,217.98
Step by Step Solution
- Step 1: Write the proportion equation
28,635,182.38 : 39,516,558.18 = 15,758,126.38 : x - Step 2: Convert to fraction form
28,635,182.38/39,516,558.18 = 15,758,126.38/x - Step 3: Cross multiply
28,635,182.38x = 39,516,558.18 × 15,758,126.38 - Step 4: Simplify right side
28,635,182.38x = 622,706,917,705,480 - Step 5: Solve for x
x = 622,706,917,705,480/28,635,182.38 - Step 6: Final answer
x = 21,746,217.98
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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.