Finding the Fourth Proportional to 11,657,905.66, 16,087,181.58 and 6,430,974.28
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Solution
The fourth proportional to 11,657,905.66, 16,087,181.58 and 6,430,974.28 is: 8,874,342.78
Step by Step Solution
- Step 1: Write the proportion equation
11,657,905.66 : 16,087,181.58 = 6,430,974.28 : x - Step 2: Convert to fraction form
11,657,905.66/16,087,181.58 = 6,430,974.28/x - Step 3: Cross multiply
11,657,905.66x = 16,087,181.58 × 6,430,974.28 - Step 4: Simplify right side
11,657,905.66x = 103,456,250,978,669.77 - Step 5: Solve for x
x = 103,456,250,978,669.77/11,657,905.66 - Step 6: Final answer
x = 8,874,342.78
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1.5x scale
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.