Finding the Fourth Proportional to 6,291,933.24, 8,662,981.08 and 5,717,257.68
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Solution
The fourth proportional to 6,291,933.24, 8,662,981.08 and 5,717,257.68 is: 7,871,745.17
Step by Step Solution
- Step 1: Write the proportion equation
6,291,933.24 : 8,662,981.08 = 5,717,257.68 : x - Step 2: Convert to fraction form
6,291,933.24/8,662,981.08 = 5,717,257.68/x - Step 3: Cross multiply
6,291,933.24x = 8,662,981.08 × 5,717,257.68 - Step 4: Simplify right side
6,291,933.24x = 49,528,495,111,324.70 - Step 5: Solve for x
x = 49,528,495,111,324.70/6,291,933.24 - Step 6: Final answer
x = 7,871,745.17
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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.