Finding the Fourth Proportional to 14,415,845.46, 19,891,903.23 and 8,613,400.74
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Solution
The fourth proportional to 14,415,845.46, 19,891,903.23 and 8,613,400.74 is: 11,885,319.84
Step by Step Solution
- Step 1: Write the proportion equation
14,415,845.46 : 19,891,903.23 = 8,613,400.74 : x - Step 2: Convert to fraction form
14,415,845.46/19,891,903.23 = 8,613,400.74/x - Step 3: Cross multiply
14,415,845.46x = 19,891,903.23 × 8,613,400.74 - Step 4: Simplify right side
14,415,845.46x = 171,336,934,001,290.41 - Step 5: Solve for x
x = 171,336,934,001,290.41/14,415,845.46 - Step 6: Final answer
x = 11,885,319.84
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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.