Finding the Fourth Proportional to 81,979,424.37, 113,131,509.76 and 44,809,948.75
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Solution
The fourth proportional to 81,979,424.37, 113,131,509.76 and 44,809,948.75 is: 61,837,676.87
Step by Step Solution
- Step 1: Write the proportion equation
81,979,424.37 : 113,131,509.76 = 44,809,948.75 : x - Step 2: Convert to fraction form
81,979,424.37/113,131,509.76 = 44,809,948.75/x - Step 3: Cross multiply
81,979,424.37x = 113,131,509.76 × 44,809,948.75 - Step 4: Simplify right side
81,979,424.37x = 5,069,417,154,355,725 - Step 5: Solve for x
x = 5,069,417,154,355,725/81,979,424.37 - Step 6: Final answer
x = 61,837,676.87
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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.