Finding the Fourth Proportional to 14,771,472.46, 20,388,033.21 and 8,661,869.26
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Solution
The fourth proportional to 14,771,472.46, 20,388,033.21 and 8,661,869.26 is: 11,955,374.02
Step by Step Solution
- Step 1: Write the proportion equation
14,771,472.46 : 20,388,033.21 = 8,661,869.26 : x - Step 2: Convert to fraction form
14,771,472.46/20,388,033.21 = 8,661,869.26/x - Step 3: Cross multiply
14,771,472.46x = 20,388,033.21 × 8,661,869.26 - Step 4: Simplify right side
14,771,472.46x = 176,598,478,115,070.06 - Step 5: Solve for x
x = 176,598,478,115,070.06/14,771,472.46 - Step 6: Final answer
x = 11,955,374.02
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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.