Finding the Fourth Proportional to 15,586,268.12, 21,509,081.18 and 8,710,749.98
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Solution
The fourth proportional to 15,586,268.12, 21,509,081.18 and 8,710,749.98 is: 12,020,852.39
Step by Step Solution
- Step 1: Write the proportion equation
15,586,268.12 : 21,509,081.18 = 8,710,749.98 : x - Step 2: Convert to fraction form
15,586,268.12/21,509,081.18 = 8,710,749.98/x - Step 3: Cross multiply
15,586,268.12x = 21,509,081.18 × 8,710,749.98 - Step 4: Simplify right side
15,586,268.12x = 187,360,228,307,404.22 - Step 5: Solve for x
x = 187,360,228,307,404.22/15,586,268.12 - Step 6: Final answer
x = 12,020,852.39
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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.