Finding the Fourth Proportional to 11,105,919.60, 16,646,437.80 and 6,315,903.60
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Solution
The fourth proportional to 11,105,919.60, 16,646,437.80 and 6,315,903.60 is: 9,466,779.90
Step by Step Solution
- Step 1: Write the proportion equation
11,105,919.60 : 16,646,437.80 = 6,315,903.60 : x - Step 2: Convert to fraction form
11,105,919.60/16,646,437.80 = 6,315,903.60/x - Step 3: Cross multiply
11,105,919.60x = 16,646,437.80 × 6,315,903.60 - Step 4: Simplify right side
11,105,919.60x = 105,137,296,428,196.08 - Step 5: Solve for x
x = 105,137,296,428,196.08/11,105,919.60 - Step 6: Final answer
x = 9,466,779.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.