Finding the Fourth Proportional to 783,013,475.09, 1,080,579,074.94 and 425,802,143.66
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Solution
The fourth proportional to 783,013,475.09, 1,080,579,074.94 and 425,802,143.66 is: 587,618,094.88
Step by Step Solution
- Step 1: Write the proportion equation
783,013,475.09 : 1,080,579,074.94 = 425,802,143.66 : x - Step 2: Convert to fraction form
783,013,475.09/1,080,579,074.94 = 425,802,143.66/x - Step 3: Cross multiply
783,013,475.09x = 1,080,579,074.94 × 425,802,143.66 - Step 4: Simplify right side
783,013,475.09x = 460,112,886,498,188,864 - Step 5: Solve for x
x = 460,112,886,498,188,864/783,013,475.09 - Step 6: Final answer
x = 587,618,094.88
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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.