Finding the Fourth Proportional to 14,991,084.63, 20,687,743.40 and 8,115,550.29
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Solution
The fourth proportional to 14,991,084.63, 20,687,743.40 and 8,115,550.29 is: 11,199,484.63
Step by Step Solution
- Step 1: Write the proportion equation
14,991,084.63 : 20,687,743.40 = 8,115,550.29 : x - Step 2: Convert to fraction form
14,991,084.63/20,687,743.40 = 8,115,550.29/x - Step 3: Cross multiply
14,991,084.63x = 20,687,743.40 × 8,115,550.29 - Step 4: Simplify right side
14,991,084.63x = 167,892,421,908,737.84 - Step 5: Solve for x
x = 167,892,421,908,737.84/14,991,084.63 - Step 6: Final answer
x = 11,199,484.63
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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.