Finding the Fourth Proportional to 17,678,291.90, 26,521,427.57 and 5,383,355.09
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Solution
The fourth proportional to 17,678,291.90, 26,521,427.57 and 5,383,355.09 is: 8,076,247.57
Step by Step Solution
- Step 1: Write the proportion equation
17,678,291.90 : 26,521,427.57 = 5,383,355.09 : x - Step 2: Convert to fraction form
17,678,291.90/26,521,427.57 = 5,383,355.09/x - Step 3: Cross multiply
17,678,291.90x = 26,521,427.57 × 5,383,355.09 - Step 4: Simplify right side
17,678,291.90x = 142,774,261,943,501.94 - Step 5: Solve for x
x = 142,774,261,943,501.94/17,678,291.90 - Step 6: Final answer
x = 8,076,247.57
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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.