Finding the Fourth Proportional to 9,982,811.92, 13,776,289.65 and 5,399,133.31
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Solution
The fourth proportional to 9,982,811.92, 13,776,289.65 and 5,399,133.31 is: 7,450,808.94
Step by Step Solution
- Step 1: Write the proportion equation
9,982,811.92 : 13,776,289.65 = 5,399,133.31 : x - Step 2: Convert to fraction form
9,982,811.92/13,776,289.65 = 5,399,133.31/x - Step 3: Cross multiply
9,982,811.92x = 13,776,289.65 × 5,399,133.31 - Step 4: Simplify right side
9,982,811.92x = 74,380,024,337,523.23 - Step 5: Solve for x
x = 74,380,024,337,523.23/9,982,811.92 - Step 6: Final answer
x = 7,450,808.94
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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.