Finding the Fourth Proportional to 12,679,865.84, 17,498,214.87 and 7,247,474.48
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Solution
The fourth proportional to 12,679,865.84, 17,498,214.87 and 7,247,474.48 is: 10,001,514.79
Step by Step Solution
- Step 1: Write the proportion equation
12,679,865.84 : 17,498,214.87 = 7,247,474.48 : x - Step 2: Convert to fraction form
12,679,865.84/17,498,214.87 = 7,247,474.48/x - Step 3: Cross multiply
12,679,865.84x = 17,498,214.87 × 7,247,474.48 - Step 4: Simplify right side
12,679,865.84x = 126,817,865,715,881.53 - Step 5: Solve for x
x = 126,817,865,715,881.53/12,679,865.84 - Step 6: Final answer
x = 10,001,514.79
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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.