Finding the Fourth Proportional to 15,857,162.70, 21,883,486.04 and 8,887,969.06
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Solution
The fourth proportional to 15,857,162.70, 21,883,486.04 and 8,887,969.06 is: 12,265,734.45
Step by Step Solution
- Step 1: Write the proportion equation
15,857,162.70 : 21,883,486.04 = 8,887,969.06 : x - Step 2: Convert to fraction form
15,857,162.70/21,883,486.04 = 8,887,969.06/x - Step 3: Cross multiply
15,857,162.70x = 21,883,486.04 × 8,887,969.06 - Step 4: Simplify right side
15,857,162.70x = 194,499,746,848,461.94 - Step 5: Solve for x
x = 194,499,746,848,461.94/15,857,162.70 - Step 6: Final answer
x = 12,265,734.45
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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.