Finding the Fourth Proportional to 19,979,551.68, 27,571,679.95 and 10,812,194.43
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Solution
The fourth proportional to 19,979,551.68, 27,571,679.95 and 10,812,194.43 is: 14,920,773.45
Step by Step Solution
- Step 1: Write the proportion equation
19,979,551.68 : 27,571,679.95 = 10,812,194.43 : x - Step 2: Convert to fraction form
19,979,551.68/27,571,679.95 = 10,812,194.43/x - Step 3: Cross multiply
19,979,551.68x = 27,571,679.95 × 10,812,194.43 - Step 4: Simplify right side
19,979,551.68x = 298,110,364,285,173 - Step 5: Solve for x
x = 298,110,364,285,173/19,979,551.68 - Step 6: Final answer
x = 14,920,773.45
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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.