Finding the Fourth Proportional to 4,911,434.40, 7,368,151.68 and 2,071,557.12
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Solution
The fourth proportional to 4,911,434.40, 7,368,151.68 and 2,071,557.12 is: 3,107,757.50
Step by Step Solution
- Step 1: Write the proportion equation
4,911,434.40 : 7,368,151.68 = 2,071,557.12 : x - Step 2: Convert to fraction form
4,911,434.40/7,368,151.68 = 2,071,557.12/x - Step 3: Cross multiply
4,911,434.40x = 7,368,151.68 × 2,071,557.12 - Step 4: Simplify right side
4,911,434.40x = 15,263,547,073,943.96 - Step 5: Solve for x
x = 15,263,547,073,943.96/4,911,434.40 - Step 6: Final answer
x = 3,107,757.50
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1.5x scale
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.