Finding the Fourth Proportional to 3,128,564,769.96, 4,317,789,509.99 and 1,858,410,771.84
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Solution
The fourth proportional to 3,128,564,769.96, 4,317,789,509.99 and 1,858,410,771.84 is: 2,564,826,725.96
Step by Step Solution
- Step 1: Write the proportion equation
3,128,564,769.96 : 4,317,789,509.99 = 1,858,410,771.84 : x - Step 2: Convert to fraction form
3,128,564,769.96/4,317,789,509.99 = 1,858,410,771.84/x - Step 3: Cross multiply
3,128,564,769.96x = 4,317,789,509.99 × 1,858,410,771.84 - Step 4: Simplify right side
3,128,564,769.96x = 8,024,226,535,893,877,760 - Step 5: Solve for x
x = 8,024,226,535,893,877,760/3,128,564,769.96 - Step 6: Final answer
x = 2,564,826,725.96
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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.