Finding the Fourth Proportional to 8,613,475.89, 11,887,434.36 and 6,434,235.63
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Solution
The fourth proportional to 8,613,475.89, 11,887,434.36 and 6,434,235.63 is: 8,879,870.88
Step by Step Solution
- Step 1: Write the proportion equation
8,613,475.89 : 11,887,434.36 = 6,434,235.63 : x - Step 2: Convert to fraction form
8,613,475.89/11,887,434.36 = 6,434,235.63/x - Step 3: Cross multiply
8,613,475.89x = 11,887,434.36 × 6,434,235.63 - Step 4: Simplify right side
8,613,475.89x = 76,486,553,708,398.23 - Step 5: Solve for x
x = 76,486,553,708,398.23/8,613,475.89 - Step 6: Final answer
x = 8,879,870.88
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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.