Finding the Fourth Proportional to 11,688,423.40, 16,129,253.08 and 6,726,062.82
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Solution
The fourth proportional to 11,688,423.40, 16,129,253.08 and 6,726,062.82 is: 9,281,522.90
Step by Step Solution
- Step 1: Write the proportion equation
11,688,423.40 : 16,129,253.08 = 6,726,062.82 : x - Step 2: Convert to fraction form
11,688,423.40/16,129,253.08 = 6,726,062.82/x - Step 3: Cross multiply
11,688,423.40x = 16,129,253.08 × 6,726,062.82 - Step 4: Simplify right side
11,688,423.40x = 108,486,369,455,758.48 - Step 5: Solve for x
x = 108,486,369,455,758.48/11,688,423.40 - Step 6: Final answer
x = 9,281,522.90
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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.