Finding the Fourth Proportional to 4,276,191.76, 6,415,621.72 and 1,436,427.08
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Solution
The fourth proportional to 4,276,191.76, 6,415,621.72 and 1,436,427.08 is: 2,155,088.75
Step by Step Solution
- Step 1: Write the proportion equation
4,276,191.76 : 6,415,621.72 = 1,436,427.08 : x - Step 2: Convert to fraction form
4,276,191.76/6,415,621.72 = 1,436,427.08/x - Step 3: Cross multiply
4,276,191.76x = 6,415,621.72 × 1,436,427.08 - Step 4: Simplify right side
4,276,191.76x = 9,215,572,773,644.18 - Step 5: Solve for x
x = 9,215,572,773,644.18/4,276,191.76 - Step 6: Final answer
x = 2,155,088.75
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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.