Finding the Fourth Proportional to 14,456,515.74, 19,949,805.60 and 8,261,491.51
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Solution
The fourth proportional to 14,456,515.74, 19,949,805.60 and 8,261,491.51 is: 11,400,751.92
Step by Step Solution
- Step 1: Write the proportion equation
14,456,515.74 : 19,949,805.60 = 8,261,491.51 : x - Step 2: Convert to fraction form
14,456,515.74/19,949,805.60 = 8,261,491.51/x - Step 3: Cross multiply
14,456,515.74x = 19,949,805.60 × 8,261,491.51 - Step 4: Simplify right side
14,456,515.74x = 164,815,149,590,550.47 - Step 5: Solve for x
x = 164,815,149,590,550.47/14,456,515.74 - Step 6: Final answer
x = 11,400,751.92
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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.