Finding the Fourth Proportional to 6,447,581.36, 8,891,555.31 and 4,125,208.79
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Solution
The fourth proportional to 6,447,581.36, 8,891,555.31 and 4,125,208.79 is: 5,688,880.85
Step by Step Solution
- Step 1: Write the proportion equation
6,447,581.36 : 8,891,555.31 = 4,125,208.79 : x - Step 2: Convert to fraction form
6,447,581.36/8,891,555.31 = 4,125,208.79/x - Step 3: Cross multiply
6,447,581.36x = 8,891,555.31 × 4,125,208.79 - Step 4: Simplify right side
6,447,581.36x = 36,679,522,143,812.06 - Step 5: Solve for x
x = 36,679,522,143,812.06/6,447,581.36 - Step 6: Final answer
x = 5,688,880.85
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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.