Finding the Fourth Proportional to 86,613,634.52, 119,486,749.58 and 76,700,619.62
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Solution
The fourth proportional to 86,613,634.52, 119,486,749.58 and 76,700,619.62 is: 105,811,374.61
Step by Step Solution
- Step 1: Write the proportion equation
86,613,634.52 : 119,486,749.58 = 76,700,619.62 : x - Step 2: Convert to fraction form
86,613,634.52/119,486,749.58 = 76,700,619.62/x - Step 3: Cross multiply
86,613,634.52x = 119,486,749.58 × 76,700,619.62 - Step 4: Simplify right side
86,613,634.52x = 9,164,707,728,782,272 - Step 5: Solve for x
x = 9,164,707,728,782,272/86,613,634.52 - Step 6: Final answer
x = 105,811,374.61
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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.