Finding the Fourth Proportional to 7,775,519.07, 10,730,220.90 and 4,337,760.09
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Solution
The fourth proportional to 7,775,519.07, 10,730,220.90 and 4,337,760.09 is: 5,986,111.48
Step by Step Solution
- Step 1: Write the proportion equation
7,775,519.07 : 10,730,220.90 = 4,337,760.09 : x - Step 2: Convert to fraction form
7,775,519.07/10,730,220.90 = 4,337,760.09/x - Step 3: Cross multiply
7,775,519.07x = 10,730,220.90 × 4,337,760.09 - Step 4: Simplify right side
7,775,519.07x = 46,545,123,976,903.88 - Step 5: Solve for x
x = 46,545,123,976,903.88/7,775,519.07 - Step 6: Final answer
x = 5,986,111.48
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Double scale
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Similar ratio
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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.