Finding the Fourth Proportional to 4,156,905.66, 5,731,341.37 and 3,178,057.74
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Solution
The fourth proportional to 4,156,905.66, 5,731,341.37 and 3,178,057.74 is: 4,381,752.99
Step by Step Solution
- Step 1: Write the proportion equation
4,156,905.66 : 5,731,341.37 = 3,178,057.74 : x - Step 2: Convert to fraction form
4,156,905.66/5,731,341.37 = 3,178,057.74/x - Step 3: Cross multiply
4,156,905.66x = 5,731,341.37 × 3,178,057.74 - Step 4: Simplify right side
4,156,905.66x = 18,214,533,801,510.71 - Step 5: Solve for x
x = 18,214,533,801,510.71/4,156,905.66 - Step 6: Final answer
x = 4,381,752.99
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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.