Finding the Fourth Proportional to 5,707,256.28, 7,876,011.76 and 3,128,881.68
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Solution
The fourth proportional to 5,707,256.28, 7,876,011.76 and 3,128,881.68 is: 4,317,855.67
Step by Step Solution
- Step 1: Write the proportion equation
5,707,256.28 : 7,876,011.76 = 3,128,881.68 : x - Step 2: Convert to fraction form
5,707,256.28/7,876,011.76 = 3,128,881.68/x - Step 3: Cross multiply
5,707,256.28x = 7,876,011.76 × 3,128,881.68 - Step 4: Simplify right side
5,707,256.28x = 24,643,108,907,328.56 - Step 5: Solve for x
x = 24,643,108,907,328.56/5,707,256.28 - Step 6: Final answer
x = 4,317,855.67
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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.