Finding the Fourth Proportional to 135,433,071.21, 186,909,165.18 and 76,706,183.51
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Solution
The fourth proportional to 135,433,071.21, 186,909,165.18 and 76,706,183.51 is: 105,861,061.81
Step by Step Solution
- Step 1: Write the proportion equation
135,433,071.21 : 186,909,165.18 = 76,706,183.51 : x - Step 2: Convert to fraction form
135,433,071.21/186,909,165.18 = 76,706,183.51/x - Step 3: Cross multiply
135,433,071.21x = 186,909,165.18 × 76,706,183.51 - Step 4: Simplify right side
135,433,071.21x = 14,337,088,723,063,436 - Step 5: Solve for x
x = 14,337,088,723,063,436/135,433,071.21 - Step 6: Final answer
x = 105,861,061.81
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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.