Finding the Fourth Proportional to 5,079,605.08, 7,009,630.14 and 2,787,770.20
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Solution
The fourth proportional to 5,079,605.08, 7,009,630.14 and 2,787,770.20 is: 3,846,999.46
Step by Step Solution
- Step 1: Write the proportion equation
5,079,605.08 : 7,009,630.14 = 2,787,770.20 : x - Step 2: Convert to fraction form
5,079,605.08/7,009,630.14 = 2,787,770.20/x - Step 3: Cross multiply
5,079,605.08x = 7,009,630.14 × 2,787,770.20 - Step 4: Simplify right side
5,079,605.08x = 19,541,238,017,313.83 - Step 5: Solve for x
x = 19,541,238,017,313.83/5,079,605.08 - Step 6: Final answer
x = 3,846,999.46
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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.