Finding the Fourth Proportional to 7,760,781.99, 10,710,121.97 and 4,453,681.23
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Solution
The fourth proportional to 7,760,781.99, 10,710,121.97 and 4,453,681.23 is: 6,146,219.45
Step by Step Solution
- Step 1: Write the proportion equation
7,760,781.99 : 10,710,121.97 = 4,453,681.23 : x - Step 2: Convert to fraction form
7,760,781.99/10,710,121.97 = 4,453,681.23/x - Step 3: Cross multiply
7,760,781.99x = 10,710,121.97 × 4,453,681.23 - Step 4: Simplify right side
7,760,781.99x = 47,699,469,188,799.63 - Step 5: Solve for x
x = 47,699,469,188,799.63/7,760,781.99 - Step 6: Final answer
x = 6,146,219.45
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1.5x scale
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.