Finding the Fourth Proportional to 13,858,345.53, 19,124,640.68 and 7,663,808.99
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Solution
The fourth proportional to 13,858,345.53, 19,124,640.68 and 7,663,808.99 is: 10,576,124.89
Step by Step Solution
- Step 1: Write the proportion equation
13,858,345.53 : 19,124,640.68 = 7,663,808.99 : x - Step 2: Convert to fraction form
13,858,345.53/19,124,640.68 = 7,663,808.99/x - Step 3: Cross multiply
13,858,345.53x = 19,124,640.68 × 7,663,808.99 - Step 4: Simplify right side
13,858,345.53x = 146,567,593,097,440.03 - Step 5: Solve for x
x = 146,567,593,097,440.03/13,858,345.53 - Step 6: Final answer
x = 10,576,124.89
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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.