Finding the Fourth Proportional to 11,516,324.51, 15,892,533.80 and 6,289,405.45
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Solution
The fourth proportional to 11,516,324.51, 15,892,533.80 and 6,289,405.45 is: 8,679,382.78
Step by Step Solution
- Step 1: Write the proportion equation
11,516,324.51 : 15,892,533.80 = 6,289,405.45 : x - Step 2: Convert to fraction form
11,516,324.51/15,892,533.80 = 6,289,405.45/x - Step 3: Cross multiply
11,516,324.51x = 15,892,533.80 × 6,289,405.45 - Step 4: Simplify right side
11,516,324.51x = 99,954,588,696,029.22 - Step 5: Solve for x
x = 99,954,588,696,029.22/11,516,324.51 - Step 6: Final answer
x = 8,679,382.78
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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.