Finding the Fourth Proportional to 70,351,906.10, 97,085,639.63 and 38,991,979.70
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Solution
The fourth proportional to 70,351,906.10, 97,085,639.63 and 38,991,979.70 is: 53,808,937.09
Step by Step Solution
- Step 1: Write the proportion equation
70,351,906.10 : 97,085,639.63 = 38,991,979.70 : x - Step 2: Convert to fraction form
70,351,906.10/97,085,639.63 = 38,991,979.70/x - Step 3: Cross multiply
70,351,906.10x = 97,085,639.63 × 38,991,979.70 - Step 4: Simplify right side
70,351,906.10x = 3,785,561,289,614,475.50 - Step 5: Solve for x
x = 3,785,561,289,614,475.50/70,351,906.10 - Step 6: Final answer
x = 53,808,937.09
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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.