Finding the Fourth Proportional to 57,020,153.09, 78,689,470.86 and 32,239,807.62
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Solution
The fourth proportional to 57,020,153.09, 78,689,470.86 and 32,239,807.62 is: 44,491,872.87
Step by Step Solution
- Step 1: Write the proportion equation
57,020,153.09 : 78,689,470.86 = 32,239,807.62 : x - Step 2: Convert to fraction form
57,020,153.09/78,689,470.86 = 32,239,807.62/x - Step 3: Cross multiply
57,020,153.09x = 78,689,470.86 × 32,239,807.62 - Step 4: Simplify right side
57,020,153.09x = 2,536,933,402,245,996 - Step 5: Solve for x
x = 2,536,933,402,245,996/57,020,153.09 - Step 6: Final answer
x = 44,491,872.87
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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.