Finding the Fourth Proportional to 5,575,977.12, 7,694,981.08 and 3,128,769.22
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Solution
The fourth proportional to 5,575,977.12, 7,694,981.08 and 3,128,769.22 is: 4,317,775.96
Step by Step Solution
- Step 1: Write the proportion equation
5,575,977.12 : 7,694,981.08 = 3,128,769.22 : x - Step 2: Convert to fraction form
5,575,977.12/7,694,981.08 = 3,128,769.22/x - Step 3: Cross multiply
5,575,977.12x = 7,694,981.08 × 3,128,769.22 - Step 4: Simplify right side
5,575,977.12x = 24,075,819,951,586.36 - Step 5: Solve for x
x = 24,075,819,951,586.36/5,575,977.12 - Step 6: Final answer
x = 4,317,775.96
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1.5x scale
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.