Finding the Fourth Proportional to 19,745,787.84, 27,248,985.76 and 11,043,939.68
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Solution
The fourth proportional to 19,745,787.84, 27,248,985.76 and 11,043,939.68 is: 15,240,524.08
Step by Step Solution
- Step 1: Write the proportion equation
19,745,787.84 : 27,248,985.76 = 11,043,939.68 : x - Step 2: Convert to fraction form
19,745,787.84/27,248,985.76 = 11,043,939.68/x - Step 3: Cross multiply
19,745,787.84x = 27,248,985.76 × 11,043,939.68 - Step 4: Simplify right side
19,745,787.84x = 300,936,155,074,618.94 - Step 5: Solve for x
x = 300,936,155,074,618.94/19,745,787.84 - Step 6: Final answer
x = 15,240,524.08
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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.