Finding the Fourth Proportional to 11,688,493.72, 16,130,143.21 and 6,531,855.26
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Solution
The fourth proportional to 11,688,493.72, 16,130,143.21 and 6,531,855.26 is: 9,013,972.49
Step by Step Solution
- Step 1: Write the proportion equation
11,688,493.72 : 16,130,143.21 = 6,531,855.26 : x - Step 2: Convert to fraction form
11,688,493.72/16,130,143.21 = 6,531,855.26/x - Step 3: Cross multiply
11,688,493.72x = 16,130,143.21 × 6,531,855.26 - Step 4: Simplify right side
11,688,493.72x = 105,359,760,812,966.42 - Step 5: Solve for x
x = 105,359,760,812,966.42/11,688,493.72 - Step 6: Final answer
x = 9,013,972.49
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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.