Finding the Fourth Proportional to 21,107,374.74, 29,128,670.28 and 11,814,713.73
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Solution
The fourth proportional to 21,107,374.74, 29,128,670.28 and 11,814,713.73 is: 16,304,580.98
Step by Step Solution
- Step 1: Write the proportion equation
21,107,374.74 : 29,128,670.28 = 11,814,713.73 : x - Step 2: Convert to fraction form
21,107,374.74/29,128,670.28 = 11,814,713.73/x - Step 3: Cross multiply
21,107,374.74x = 29,128,670.28 × 11,814,713.73 - Step 4: Simplify right side
21,107,374.74x = 344,146,900,693,759 - Step 5: Solve for x
x = 344,146,900,693,759/21,107,374.74 - Step 6: Final answer
x = 16,304,580.98
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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.