Finding the Fourth Proportional to 6,991,371.98, 9,645,480.56 and 6,980,592.81
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Solution
The fourth proportional to 6,991,371.98, 9,645,480.56 and 6,980,592.81 is: 9,630,609.32
Step by Step Solution
- Step 1: Write the proportion equation
6,991,371.98 : 9,645,480.56 = 6,980,592.81 : x - Step 2: Convert to fraction form
6,991,371.98/9,645,480.56 = 6,980,592.81/x - Step 3: Cross multiply
6,991,371.98x = 9,645,480.56 × 6,980,592.81 - Step 4: Simplify right side
6,991,371.98x = 67,331,172,206,231.15 - Step 5: Solve for x
x = 67,331,172,206,231.15/6,991,371.98 - Step 6: Final answer
x = 9,630,609.32
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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.