Finding the Fourth Proportional to 14,212,686.10, 19,613,565.52 and 7,686,315.44
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Solution
The fourth proportional to 14,212,686.10, 19,613,565.52 and 7,686,315.44 is: 10,607,147.05
Step by Step Solution
- Step 1: Write the proportion equation
14,212,686.10 : 19,613,565.52 = 7,686,315.44 : x - Step 2: Convert to fraction form
14,212,686.10/19,613,565.52 = 7,686,315.44/x - Step 3: Cross multiply
14,212,686.10x = 19,613,565.52 × 7,686,315.44 - Step 4: Simplify right side
14,212,686.10x = 150,756,051,489,827.62 - Step 5: Solve for x
x = 150,756,051,489,827.62/14,212,686.10 - Step 6: Final answer
x = 10,607,147.05
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1.5x scale
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.