Finding the Fourth Proportional to 18,896,558.76, 26,063,814.42 and 12,613,917.96
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Solution
The fourth proportional to 18,896,558.76, 26,063,814.42 and 12,613,917.96 is: 17,398,237.48
Step by Step Solution
- Step 1: Write the proportion equation
18,896,558.76 : 26,063,814.42 = 12,613,917.96 : x - Step 2: Convert to fraction form
18,896,558.76/26,063,814.42 = 12,613,917.96/x - Step 3: Cross multiply
18,896,558.76x = 26,063,814.42 × 12,613,917.96 - Step 4: Simplify right side
18,896,558.76x = 328,766,816,818,545 - Step 5: Solve for x
x = 328,766,816,818,545/18,896,558.76 - Step 6: Final answer
x = 17,398,237.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.