Finding the Fourth Proportional to 420,246,397.32, 579,933,974.58 and 232,082,652.96
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Solution
The fourth proportional to 420,246,397.32, 579,933,974.58 and 232,082,652.96 is: 320,270,717.89
Step by Step Solution
- Step 1: Write the proportion equation
420,246,397.32 : 579,933,974.58 = 232,082,652.96 : x - Step 2: Convert to fraction form
420,246,397.32/579,933,974.58 = 232,082,652.96/x - Step 3: Cross multiply
420,246,397.32x = 579,933,974.58 × 232,082,652.96 - Step 4: Simplify right side
420,246,397.32x = 134,592,615,362,163,616 - Step 5: Solve for x
x = 134,592,615,362,163,616/420,246,397.32 - Step 6: Final answer
x = 320,270,717.89
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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.