Finding the Fourth Proportional to 7,190,261.69, 9,922,407.62 and 3,927,089.54
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Solution
The fourth proportional to 7,190,261.69, 9,922,407.62 and 3,927,089.54 is: 5,419,299.73
Step by Step Solution
- Step 1: Write the proportion equation
7,190,261.69 : 9,922,407.62 = 3,927,089.54 : x - Step 2: Convert to fraction form
7,190,261.69/9,922,407.62 = 3,927,089.54/x - Step 3: Cross multiply
7,190,261.69x = 9,922,407.62 × 3,927,089.54 - Step 4: Simplify right side
7,190,261.69x = 38,966,183,181,288.87 - Step 5: Solve for x
x = 38,966,183,181,288.87/7,190,261.69 - Step 6: Final answer
x = 5,419,299.73
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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.