Finding the Fourth Proportional to 3,842,041.36, 5,302,318.69 and 2,188,258.70
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Solution
The fourth proportional to 3,842,041.36, 5,302,318.69 and 2,188,258.70 is: 3,019,968.79
Step by Step Solution
- Step 1: Write the proportion equation
3,842,041.36 : 5,302,318.69 = 2,188,258.70 : x - Step 2: Convert to fraction form
3,842,041.36/5,302,318.69 = 2,188,258.70/x - Step 3: Cross multiply
3,842,041.36x = 5,302,318.69 × 2,188,258.70 - Step 4: Simplify right side
3,842,041.36x = 11,602,845,003,565.11 - Step 5: Solve for x
x = 11,602,845,003,565.11/3,842,041.36 - Step 6: Final answer
x = 3,019,968.79
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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.