Finding the Fourth Proportional to 7,132,992.84, 9,843,528.96 and 4,077,272.70
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Solution
The fourth proportional to 7,132,992.84, 9,843,528.96 and 4,077,272.70 is: 5,626,635.66
Step by Step Solution
- Step 1: Write the proportion equation
7,132,992.84 : 9,843,528.96 = 4,077,272.70 : x - Step 2: Convert to fraction form
7,132,992.84/9,843,528.96 = 4,077,272.70/x - Step 3: Cross multiply
7,132,992.84x = 9,843,528.96 × 4,077,272.70 - Step 4: Simplify right side
7,132,992.84x = 40,134,751,900,267.40 - Step 5: Solve for x
x = 40,134,751,900,267.40/7,132,992.84 - Step 6: Final answer
x = 5,626,635.66
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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.