Finding the Fourth Proportional to 2,166,166.08, 2,989,332.81 and 1,199,313.63
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Solution
The fourth proportional to 2,166,166.08, 2,989,332.81 and 1,199,313.63 is: 1,655,065.89
Step by Step Solution
- Step 1: Write the proportion equation
2,166,166.08 : 2,989,332.81 = 1,199,313.63 : x - Step 2: Convert to fraction form
2,166,166.08/2,989,332.81 = 1,199,313.63/x - Step 3: Cross multiply
2,166,166.08x = 2,989,332.81 × 1,199,313.63 - Step 4: Simplify right side
2,166,166.08x = 3,585,147,583,639.20 - Step 5: Solve for x
x = 3,585,147,583,639.20/2,166,166.08 - Step 6: Final answer
x = 1,655,065.89
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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.