Finding the Fourth Proportional to 19,659,428.40, 27,129,548.84 and 11,400,966.48
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Solution
The fourth proportional to 19,659,428.40, 27,129,548.84 and 11,400,966.48 is: 15,733,065.61
Step by Step Solution
- Step 1: Write the proportion equation
19,659,428.40 : 27,129,548.84 = 11,400,966.48 : x - Step 2: Convert to fraction form
19,659,428.40/27,129,548.84 = 11,400,966.48/x - Step 3: Cross multiply
19,659,428.40x = 27,129,548.84 × 11,400,966.48 - Step 4: Simplify right side
19,659,428.40x = 309,303,076,942,362.88 - Step 5: Solve for x
x = 309,303,076,942,362.88/19,659,428.40 - Step 6: Final answer
x = 15,733,065.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.