Finding the Fourth Proportional to 15,301,442.58, 21,115,988.73 and 8,425,907.70
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Solution
The fourth proportional to 15,301,442.58, 21,115,988.73 and 8,425,907.70 is: 11,627,751.51
Step by Step Solution
- Step 1: Write the proportion equation
15,301,442.58 : 21,115,988.73 = 8,425,907.70 : x - Step 2: Convert to fraction form
15,301,442.58/21,115,988.73 = 8,425,907.70/x - Step 3: Cross multiply
15,301,442.58x = 21,115,988.73 × 8,425,907.70 - Step 4: Simplify right side
15,301,442.58x = 177,921,372,033,220.22 - Step 5: Solve for x
x = 177,921,372,033,220.22/15,301,442.58 - Step 6: Final answer
x = 11,627,751.51
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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.