Finding the Fourth Proportional to 4,103,672.40, 5,663,756.79 and 2,778,495.12
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Solution
The fourth proportional to 4,103,672.40, 5,663,756.79 and 2,778,495.12 is: 3,834,789.69
Step by Step Solution
- Step 1: Write the proportion equation
4,103,672.40 : 5,663,756.79 = 2,778,495.12 : x - Step 2: Convert to fraction form
4,103,672.40/5,663,756.79 = 2,778,495.12/x - Step 3: Cross multiply
4,103,672.40x = 5,663,756.79 × 2,778,495.12 - Step 4: Simplify right side
4,103,672.40x = 15,736,720,601,881.87 - Step 5: Solve for x
x = 15,736,720,601,881.87/4,103,672.40 - Step 6: Final answer
x = 3,834,789.69
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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.