Finding the Fourth Proportional to 7,185,881.13, 9,916,750.67 and 3,922,869.84
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Solution
The fourth proportional to 7,185,881.13, 9,916,750.67 and 3,922,869.84 is: 5,413,688.51
Step by Step Solution
- Step 1: Write the proportion equation
7,185,881.13 : 9,916,750.67 = 3,922,869.84 : x - Step 2: Convert to fraction form
7,185,881.13/9,916,750.67 = 3,922,869.84/x - Step 3: Cross multiply
7,185,881.13x = 9,916,750.67 × 3,922,869.84 - Step 4: Simplify right side
7,185,881.13x = 38,902,122,094,528.44 - Step 5: Solve for x
x = 38,902,122,094,528.44/7,185,881.13 - Step 6: Final answer
x = 5,413,688.51
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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.