Finding the Fourth Proportional to 84,043,318.37, 115,979,934.09 and 46,875,994.28
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Solution
The fourth proportional to 84,043,318.37, 115,979,934.09 and 46,875,994.28 is: 64,688,958.41
Step by Step Solution
- Step 1: Write the proportion equation
84,043,318.37 : 115,979,934.09 = 46,875,994.28 : x - Step 2: Convert to fraction form
84,043,318.37/115,979,934.09 = 46,875,994.28/x - Step 3: Cross multiply
84,043,318.37x = 115,979,934.09 × 46,875,994.28 - Step 4: Simplify right side
84,043,318.37x = 5,436,674,726,417,717 - Step 5: Solve for x
x = 5,436,674,726,417,717/84,043,318.37 - Step 6: Final answer
x = 64,688,958.41
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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.