Finding the Fourth Proportional to 7,381,428.48, 10,186,622.88 and 4,283,713.44
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Solution
The fourth proportional to 7,381,428.48, 10,186,622.88 and 4,283,713.44 is: 5,911,670.55
Step by Step Solution
- Step 1: Write the proportion equation
7,381,428.48 : 10,186,622.88 = 4,283,713.44 : x - Step 2: Convert to fraction form
7,381,428.48/10,186,622.88 = 4,283,713.44/x - Step 3: Cross multiply
7,381,428.48x = 10,186,622.88 × 4,283,713.44 - Step 4: Simplify right side
7,381,428.48x = 43,636,573,339,267.52 - Step 5: Solve for x
x = 43,636,573,339,267.52/7,381,428.48 - Step 6: Final answer
x = 5,911,670.55
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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.