Finding the Fourth Proportional to 10,779,455.60, 16,169,183.40 and 6,468,441.20
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Solution
The fourth proportional to 10,779,455.60, 16,169,183.40 and 6,468,441.20 is: 9,702,661.80
Step by Step Solution
- Step 1: Write the proportion equation
10,779,455.60 : 16,169,183.40 = 6,468,441.20 : x - Step 2: Convert to fraction form
10,779,455.60/16,169,183.40 = 6,468,441.20/x - Step 3: Cross multiply
10,779,455.60x = 16,169,183.40 × 6,468,441.20 - Step 4: Simplify right side
10,779,455.60x = 104,589,412,074,916.08 - Step 5: Solve for x
x = 104,589,412,074,916.08/10,779,455.60 - Step 6: Final answer
x = 9,702,661.80
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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.