Finding the Fourth Proportional to 11,688,435.45, 16,129,993.86 and 6,531,795.63
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Solution
The fourth proportional to 11,688,435.45, 16,129,993.86 and 6,531,795.63 is: 9,013,851.67
Step by Step Solution
- Step 1: Write the proportion equation
11,688,435.45 : 16,129,993.86 = 6,531,795.63 : x - Step 2: Convert to fraction form
11,688,435.45/16,129,993.86 = 6,531,795.63/x - Step 3: Cross multiply
11,688,435.45x = 16,129,993.86 × 6,531,795.63 - Step 4: Simplify right side
11,688,435.45x = 105,357,823,406,674.83 - Step 5: Solve for x
x = 105,357,823,406,674.83/11,688,435.45 - Step 6: Final answer
x = 9,013,851.67
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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.