Finding the Fourth Proportional to 9,980,321.48, 13,772,833.99 and 5,396,631.92
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Solution
The fourth proportional to 9,980,321.48, 13,772,833.99 and 5,396,631.92 is: 7,447,346.83
Step by Step Solution
- Step 1: Write the proportion equation
9,980,321.48 : 13,772,833.99 = 5,396,631.92 : x - Step 2: Convert to fraction form
9,980,321.48/13,772,833.99 = 5,396,631.92/x - Step 3: Cross multiply
9,980,321.48x = 13,772,833.99 × 5,396,631.92 - Step 4: Simplify right side
9,980,321.48x = 74,326,915,539,294.97 - Step 5: Solve for x
x = 74,326,915,539,294.97/9,980,321.48 - Step 6: Final answer
x = 7,447,346.83
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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.