Finding the Fourth Proportional to 2,021,128,864.60, 3,031,409,861.70 and 641,082,875.80
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Solution
The fourth proportional to 2,021,128,864.60, 3,031,409,861.70 and 641,082,875.80 is: 961,534,410.75
Step by Step Solution
- Step 1: Write the proportion equation
2,021,128,864.60 : 3,031,409,861.70 = 641,082,875.80 : x - Step 2: Convert to fraction form
2,021,128,864.60/3,031,409,861.70 = 641,082,875.80/x - Step 3: Cross multiply
2,021,128,864.60x = 3,031,409,861.70 × 641,082,875.80 - Step 4: Simplify right side
2,021,128,864.60x = 1,943,384,951,867,116,032 - Step 5: Solve for x
x = 1,943,384,951,867,116,032/2,021,128,864.60 - Step 6: Final answer
x = 961,534,410.75
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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.