Finding the Fourth Proportional to 37,457,889.57, 51,685,271.93 and 20,932,731.68
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Solution
The fourth proportional to 37,457,889.57, 51,685,271.93 and 20,932,731.68 is: 28,883,472.65
Step by Step Solution
- Step 1: Write the proportion equation
37,457,889.57 : 51,685,271.93 = 20,932,731.68 : x - Step 2: Convert to fraction form
37,457,889.57/51,685,271.93 = 20,932,731.68/x - Step 3: Cross multiply
37,457,889.57x = 51,685,271.93 × 20,932,731.68 - Step 4: Simplify right side
37,457,889.57x = 1,081,913,928,755,435.75 - Step 5: Solve for x
x = 1,081,913,928,755,435.75/37,457,889.57 - Step 6: Final answer
x = 28,883,472.65
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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.