Finding the Fourth Proportional to 20,722,471.02, 31,083,779.40 and 6,345,475.62
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Solution
The fourth proportional to 20,722,471.02, 31,083,779.40 and 6,345,475.62 is: 9,518,235.74
Step by Step Solution
- Step 1: Write the proportion equation
20,722,471.02 : 31,083,779.40 = 6,345,475.62 : x - Step 2: Convert to fraction form
20,722,471.02/31,083,779.40 = 6,345,475.62/x - Step 3: Cross multiply
20,722,471.02x = 31,083,779.40 × 6,345,475.62 - Step 4: Simplify right side
20,722,471.02x = 197,241,364,360,158.22 - Step 5: Solve for x
x = 197,241,364,360,158.22/20,722,471.02 - Step 6: Final answer
x = 9,518,235.74
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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.