Finding the Fourth Proportional to 7,768,309.48, 10,720,905.34 and 4,284,329.68
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Solution
The fourth proportional to 7,768,309.48, 10,720,905.34 and 4,284,329.68 is: 5,912,726.97
Step by Step Solution
- Step 1: Write the proportion equation
7,768,309.48 : 10,720,905.34 = 4,284,329.68 : x - Step 2: Convert to fraction form
7,768,309.48/10,720,905.34 = 4,284,329.68/x - Step 3: Cross multiply
7,768,309.48x = 10,720,905.34 × 4,284,329.68 - Step 4: Simplify right side
7,768,309.48x = 45,931,892,944,632.48 - Step 5: Solve for x
x = 45,931,892,944,632.48/7,768,309.48 - Step 6: Final answer
x = 5,912,726.97
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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.