Finding the Fourth Proportional to 11,731,837.34, 16,172,970.63 and 8,236,535.06
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Solution
The fourth proportional to 11,731,837.34, 16,172,970.63 and 8,236,535.06 is: 11,354,507.89
Step by Step Solution
- Step 1: Write the proportion equation
11,731,837.34 : 16,172,970.63 = 8,236,535.06 : x - Step 2: Convert to fraction form
11,731,837.34/16,172,970.63 = 8,236,535.06/x - Step 3: Cross multiply
11,731,837.34x = 16,172,970.63 × 8,236,535.06 - Step 4: Simplify right side
11,731,837.34x = 133,209,239,618,345.28 - Step 5: Solve for x
x = 133,209,239,618,345.28/11,731,837.34 - Step 6: Final answer
x = 11,354,507.89
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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.