Finding the Fourth Proportional to 13,921,744.92, 19,211,026.14 and 7,727,106.84
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Solution
The fourth proportional to 13,921,744.92, 19,211,026.14 and 7,727,106.84 is: 10,662,862.47
Step by Step Solution
- Step 1: Write the proportion equation
13,921,744.92 : 19,211,026.14 = 7,727,106.84 : x - Step 2: Convert to fraction form
13,921,744.92/19,211,026.14 = 7,727,106.84/x - Step 3: Cross multiply
13,921,744.92x = 19,211,026.14 × 7,727,106.84 - Step 4: Simplify right side
13,921,744.92x = 148,445,651,489,812.81 - Step 5: Solve for x
x = 148,445,651,489,812.81/13,921,744.92 - Step 6: Final answer
x = 10,662,862.47
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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.