Finding the Fourth Proportional to 11,688,561.84, 16,129,674.60 and 6,531,878.28
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Solution
The fourth proportional to 11,688,561.84, 16,129,674.60 and 6,531,878.28 is: 9,013,689.85
Step by Step Solution
- Step 1: Write the proportion equation
11,688,561.84 : 16,129,674.60 = 6,531,878.28 : x - Step 2: Convert to fraction form
11,688,561.84/16,129,674.60 = 6,531,878.28/x - Step 3: Cross multiply
11,688,561.84x = 16,129,674.60 × 6,531,878.28 - Step 4: Simplify right side
11,688,561.84x = 105,357,071,183,207.69 - Step 5: Solve for x
x = 105,357,071,183,207.69/11,688,561.84 - Step 6: Final answer
x = 9,013,689.85
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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.