Finding the Fourth Proportional to 608,999,260.96, 840,419,901.84 and 330,540,885.28
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Solution
The fourth proportional to 608,999,260.96, 840,419,901.84 and 330,540,885.28 is: 456,146,921.96
Step by Step Solution
- Step 1: Write the proportion equation
608,999,260.96 : 840,419,901.84 = 330,540,885.28 : x - Step 2: Convert to fraction form
608,999,260.96/840,419,901.84 = 330,540,885.28/x - Step 3: Cross multiply
608,999,260.96x = 840,419,901.84 × 330,540,885.28 - Step 4: Simplify right side
608,999,260.96x = 277,793,138,361,124,288 - Step 5: Solve for x
x = 277,793,138,361,124,288/608,999,260.96 - Step 6: Final answer
x = 456,146,921.96
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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.