Finding the Fourth Proportional to 6,385,921,871.68, 9,578,905,027.44 and 1,964,311,289.92
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Solution
The fourth proportional to 6,385,921,871.68, 9,578,905,027.44 and 1,964,311,289.92 is: 2,946,473,769.73
Step by Step Solution
- Step 1: Write the proportion equation
6,385,921,871.68 : 9,578,905,027.44 = 1,964,311,289.92 : x - Step 2: Convert to fraction form
6,385,921,871.68/9,578,905,027.44 = 1,964,311,289.92/x - Step 3: Cross multiply
6,385,921,871.68x = 9,578,905,027.44 × 1,964,311,289.92 - Step 4: Simplify right side
6,385,921,871.68x = 18,815,951,290,471,841,792 - Step 5: Solve for x
x = 18,815,951,290,471,841,792/6,385,921,871.68 - Step 6: Final answer
x = 2,946,473,769.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.