Finding the Fourth Proportional to 15,807,809.64, 21,802,740.84 and 13,606,419
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Solution
The fourth proportional to 15,807,809.64, 21,802,740.84 and 13,606,419 is: 18,766,497.95
Step by Step Solution
- Step 1: Write the proportion equation
15,807,809.64 : 21,802,740.84 = 13,606,419 : x - Step 2: Convert to fraction form
15,807,809.64/21,802,740.84 = 13,606,419/x - Step 3: Cross multiply
15,807,809.64x = 21,802,740.84 × 13,606,419 - Step 4: Simplify right side
15,807,809.64x = 296,657,227,217,451.94 - Step 5: Solve for x
x = 296,657,227,217,451.94/15,807,809.64 - Step 6: Final answer
x = 18,766,497.95
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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.