Finding the Fourth Proportional to 14,947,965.47, 20,628,192.51 and 8,072,447.53
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Solution
The fourth proportional to 14,947,965.47, 20,628,192.51 and 8,072,447.53 is: 11,139,977.68
Step by Step Solution
- Step 1: Write the proportion equation
14,947,965.47 : 20,628,192.51 = 8,072,447.53 : x - Step 2: Convert to fraction form
14,947,965.47/20,628,192.51 = 8,072,447.53/x - Step 3: Cross multiply
14,947,965.47x = 20,628,192.51 × 8,072,447.53 - Step 4: Simplify right side
14,947,965.47x = 166,520,001,675,714.03 - Step 5: Solve for x
x = 166,520,001,675,714.03/14,947,965.47 - Step 6: Final answer
x = 11,139,977.68
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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.