Finding the Fourth Proportional to 9,765,982.80, 13,475,817.36 and 5,354,547.66
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Solution
The fourth proportional to 9,765,982.80, 13,475,817.36 and 5,354,547.66 is: 7,388,596.50
Step by Step Solution
- Step 1: Write the proportion equation
9,765,982.80 : 13,475,817.36 = 5,354,547.66 : x - Step 2: Convert to fraction form
9,765,982.80/13,475,817.36 = 5,354,547.66/x - Step 3: Cross multiply
9,765,982.80x = 13,475,817.36 × 5,354,547.66 - Step 4: Simplify right side
9,765,982.80x = 72,156,906,311,575.38 - Step 5: Solve for x
x = 72,156,906,311,575.38/9,765,982.80 - Step 6: Final answer
x = 7,388,596.50
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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.