Finding the Fourth Proportional to 86,613,636.76, 119,486,752.68 and 76,700,621.84
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Solution
The fourth proportional to 86,613,636.76, 119,486,752.68 and 76,700,621.84 is: 105,811,377.69
Step by Step Solution
- Step 1: Write the proportion equation
86,613,636.76 : 119,486,752.68 = 76,700,621.84 : x - Step 2: Convert to fraction form
86,613,636.76/119,486,752.68 = 76,700,621.84/x - Step 3: Cross multiply
86,613,636.76x = 119,486,752.68 × 76,700,621.84 - Step 4: Simplify right side
86,613,636.76x = 9,164,708,232,198,288 - Step 5: Solve for x
x = 9,164,708,232,198,288/86,613,636.76 - Step 6: Final answer
x = 105,811,377.69
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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.