Finding the Fourth Proportional to 86,615,459.39, 129,922,058.84 and 21,037,134.66
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Solution
The fourth proportional to 86,615,459.39, 129,922,058.84 and 21,037,134.66 is: 31,555,427.48
Step by Step Solution
- Step 1: Write the proportion equation
86,615,459.39 : 129,922,058.84 = 21,037,134.66 : x - Step 2: Convert to fraction form
86,615,459.39/129,922,058.84 = 21,037,134.66/x - Step 3: Cross multiply
86,615,459.39x = 129,922,058.84 × 21,037,134.66 - Step 4: Simplify right side
86,615,459.39x = 2,733,187,847,016,337.50 - Step 5: Solve for x
x = 2,733,187,847,016,337.50/86,615,459.39 - Step 6: Final answer
x = 31,555,427.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.