Finding the Fourth Proportional to 18,747,338.36, 28,115,250.47 and 6,613,964.29
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Solution
The fourth proportional to 18,747,338.36, 28,115,250.47 and 6,613,964.29 is: 9,918,915.36
Step by Step Solution
- Step 1: Write the proportion equation
18,747,338.36 : 28,115,250.47 = 6,613,964.29 : x - Step 2: Convert to fraction form
18,747,338.36/28,115,250.47 = 6,613,964.29/x - Step 3: Cross multiply
18,747,338.36x = 28,115,250.47 × 6,613,964.29 - Step 4: Simplify right side
18,747,338.36x = 185,953,262,509,627.75 - Step 5: Solve for x
x = 185,953,262,509,627.75/18,747,338.36 - Step 6: Final answer
x = 9,918,915.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.