Finding the Fourth Proportional to 7,881,518.09, 11,822,776.61 and 3,331,718.93
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Solution
The fourth proportional to 7,881,518.09, 11,822,776.61 and 3,331,718.93 is: 4,997,789.54
Step by Step Solution
- Step 1: Write the proportion equation
7,881,518.09 : 11,822,776.61 = 3,331,718.93 : x - Step 2: Convert to fraction form
7,881,518.09/11,822,776.61 = 3,331,718.93/x - Step 3: Cross multiply
7,881,518.09x = 11,822,776.61 × 3,331,718.93 - Step 4: Simplify right side
7,881,518.09x = 39,390,168,649,596.58 - Step 5: Solve for x
x = 39,390,168,649,596.58/7,881,518.09 - Step 6: Final answer
x = 4,997,789.54
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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.