Finding the Fourth Proportional to 19,987,630.18, 27,582,938.88 and 10,820,272.94
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Solution
The fourth proportional to 19,987,630.18, 27,582,938.88 and 10,820,272.94 is: 14,931,981.65
Step by Step Solution
- Step 1: Write the proportion equation
19,987,630.18 : 27,582,938.88 = 10,820,272.94 : x - Step 2: Convert to fraction form
19,987,630.18/27,582,938.88 = 10,820,272.94/x - Step 3: Cross multiply
19,987,630.18x = 27,582,938.88 × 10,820,272.94 - Step 4: Simplify right side
19,987,630.18x = 298,454,927,168,937.88 - Step 5: Solve for x
x = 298,454,927,168,937.88/19,987,630.18 - Step 6: Final answer
x = 14,931,981.65
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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.