Finding the Fourth Proportional to 19,358,341.30, 29,037,382.78 and 7,843,638.68
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Solution
The fourth proportional to 19,358,341.30, 29,037,382.78 and 7,843,638.68 is: 11,765,405.68
Step by Step Solution
- Step 1: Write the proportion equation
19,358,341.30 : 29,037,382.78 = 7,843,638.68 : x - Step 2: Convert to fraction form
19,358,341.30/29,037,382.78 = 7,843,638.68/x - Step 3: Cross multiply
19,358,341.30x = 29,037,382.78 × 7,843,638.68 - Step 4: Simplify right side
19,358,341.30x = 227,758,738,554,768.81 - Step 5: Solve for x
x = 227,758,738,554,768.81/19,358,341.30 - Step 6: Final answer
x = 11,765,405.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.