Finding the Fourth Proportional to 12,296,726.30, 18,445,089.45 and 12,128,764.70
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Solution
The fourth proportional to 12,296,726.30, 18,445,089.45 and 12,128,764.70 is: 18,193,147.05
Step by Step Solution
- Step 1: Write the proportion equation
12,296,726.30 : 18,445,089.45 = 12,128,764.70 : x - Step 2: Convert to fraction form
12,296,726.30/18,445,089.45 = 12,128,764.70/x - Step 3: Cross multiply
12,296,726.30x = 18,445,089.45 × 12,128,764.70 - Step 4: Simplify right side
12,296,726.30x = 223,716,149,809,502.41 - Step 5: Solve for x
x = 223,716,149,809,502.41/12,296,726.30 - Step 6: Final answer
x = 18,193,147.05
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Double scale
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Similar ratio
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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.