Finding the Fourth Proportional to 11,881,001.28, 16,395,343.20 and 6,448,376.64
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Solution
The fourth proportional to 11,881,001.28, 16,395,343.20 and 6,448,376.64 is: 8,898,521.73
Step by Step Solution
- Step 1: Write the proportion equation
11,881,001.28 : 16,395,343.20 = 6,448,376.64 : x - Step 2: Convert to fraction form
11,881,001.28/16,395,343.20 = 6,448,376.64/x - Step 3: Cross multiply
11,881,001.28x = 16,395,343.20 × 6,448,376.64 - Step 4: Simplify right side
11,881,001.28x = 105,723,348,095,662.84 - Step 5: Solve for x
x = 105,723,348,095,662.84/11,881,001.28 - Step 6: Final answer
x = 8,898,521.73
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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.