Finding the Fourth Proportional to 11,688,562.84, 16,129,675.98 and 6,531,879.28
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Solution
The fourth proportional to 11,688,562.84, 16,129,675.98 and 6,531,879.28 is: 9,013,691.23
Step by Step Solution
- Step 1: Write the proportion equation
11,688,562.84 : 16,129,675.98 = 6,531,879.28 : x - Step 2: Convert to fraction form
11,688,562.84/16,129,675.98 = 6,531,879.28/x - Step 3: Cross multiply
11,688,562.84x = 16,129,675.98 × 6,531,879.28 - Step 4: Simplify right side
11,688,562.84x = 105,357,096,326,875.70 - Step 5: Solve for x
x = 105,357,096,326,875.70/11,688,562.84 - Step 6: Final answer
x = 9,013,691.23
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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.