Finding the Fourth Proportional to 7,857,656.94, 10,842,980.36 and 4,419,233.68
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Solution
The fourth proportional to 7,857,656.94, 10,842,980.36 and 4,419,233.68 is: 6,098,212.78
Step by Step Solution
- Step 1: Write the proportion equation
7,857,656.94 : 10,842,980.36 = 4,419,233.68 : x - Step 2: Convert to fraction form
7,857,656.94/10,842,980.36 = 4,419,233.68/x - Step 3: Cross multiply
7,857,656.94x = 10,842,980.36 × 4,419,233.68 - Step 4: Simplify right side
7,857,656.94x = 47,917,663,998,490.52 - Step 5: Solve for x
x = 47,917,663,998,490.52/7,857,656.94 - Step 6: Final answer
x = 6,098,212.78
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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.