Finding the Fourth Proportional to 12,291,810.60, 18,437,715.90 and 6,552,247.80
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Solution
The fourth proportional to 12,291,810.60, 18,437,715.90 and 6,552,247.80 is: 9,828,371.70
Step by Step Solution
- Step 1: Write the proportion equation
12,291,810.60 : 18,437,715.90 = 6,552,247.80 : x - Step 2: Convert to fraction form
12,291,810.60/18,437,715.90 = 6,552,247.80/x - Step 3: Cross multiply
12,291,810.60x = 18,437,715.90 × 6,552,247.80 - Step 4: Simplify right side
12,291,810.60x = 120,808,483,442,800 - Step 5: Solve for x
x = 120,808,483,442,800/12,291,810.60 - Step 6: Final answer
x = 9,828,371.70
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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.