Finding the Fourth Proportional to 10,119,740.16, 13,965,351.68 and 5,535,963.12
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Solution
The fourth proportional to 10,119,740.16, 13,965,351.68 and 5,535,963.12 is: 7,639,689.42
Step by Step Solution
- Step 1: Write the proportion equation
10,119,740.16 : 13,965,351.68 = 5,535,963.12 : x - Step 2: Convert to fraction form
10,119,740.16/13,965,351.68 = 5,535,963.12/x - Step 3: Cross multiply
10,119,740.16x = 13,965,351.68 × 5,535,963.12 - Step 4: Simplify right side
10,119,740.16x = 77,311,671,858,310.05 - Step 5: Solve for x
x = 77,311,671,858,310.05/10,119,740.16 - Step 6: Final answer
x = 7,639,689.42
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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.