Finding the Fourth Proportional to 13,053,318.58, 18,012,523.62 and 7,547,046.70
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Solution
The fourth proportional to 13,053,318.58, 18,012,523.62 and 7,547,046.70 is: 10,414,313.89
Step by Step Solution
- Step 1: Write the proportion equation
13,053,318.58 : 18,012,523.62 = 7,547,046.70 : x - Step 2: Convert to fraction form
13,053,318.58/18,012,523.62 = 7,547,046.70/x - Step 3: Cross multiply
13,053,318.58x = 18,012,523.62 × 7,547,046.70 - Step 4: Simplify right side
13,053,318.58x = 135,941,356,944,993.06 - Step 5: Solve for x
x = 135,941,356,944,993.06/13,053,318.58 - Step 6: Final answer
x = 10,414,313.89
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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.