Finding the Fourth Proportional to 18,790,932.24, 28,166,248.80 and 12,311,560.80
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Solution
The fourth proportional to 18,790,932.24, 28,166,248.80 and 12,311,560.80 is: 18,454,139.48
Step by Step Solution
- Step 1: Write the proportion equation
18,790,932.24 : 28,166,248.80 = 12,311,560.80 : x - Step 2: Convert to fraction form
18,790,932.24/28,166,248.80 = 12,311,560.80/x - Step 3: Cross multiply
18,790,932.24x = 28,166,248.80 × 12,311,560.80 - Step 4: Simplify right side
18,790,932.24x = 346,770,484,609,127.06 - Step 5: Solve for x
x = 346,770,484,609,127.06/18,790,932.24 - Step 6: Final answer
x = 18,454,139.48
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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.