Finding the Fourth Proportional to 14,776,936.80, 22,165,405.20 and 12,119,731.80
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Solution
The fourth proportional to 14,776,936.80, 22,165,405.20 and 12,119,731.80 is: 18,179,597.70
Step by Step Solution
- Step 1: Write the proportion equation
14,776,936.80 : 22,165,405.20 = 12,119,731.80 : x - Step 2: Convert to fraction form
14,776,936.80/22,165,405.20 = 12,119,731.80/x - Step 3: Cross multiply
14,776,936.80x = 22,165,405.20 × 12,119,731.80 - Step 4: Simplify right side
14,776,936.80x = 268,638,766,262,325.38 - Step 5: Solve for x
x = 268,638,766,262,325.38/14,776,936.80 - Step 6: Final answer
x = 18,179,597.70
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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.