Finding the Fourth Proportional to 28,635,181.88, 39,516,557.49 and 15,758,125.88
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Solution
The fourth proportional to 28,635,181.88, 39,516,557.49 and 15,758,125.88 is: 21,746,217.29
Step by Step Solution
- Step 1: Write the proportion equation
28,635,181.88 : 39,516,557.49 = 15,758,125.88 : x - Step 2: Convert to fraction form
28,635,181.88/39,516,557.49 = 15,758,125.88/x - Step 3: Cross multiply
28,635,181.88x = 39,516,557.49 × 15,758,125.88 - Step 4: Simplify right side
28,635,181.88x = 622,706,887,074,094.12 - Step 5: Solve for x
x = 622,706,887,074,094.12/28,635,181.88 - Step 6: Final answer
x = 21,746,217.29
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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.