Finding the Fourth Proportional to 399,216,087,371.80, 551,108,170,357.50 and 267,455,313,734.44
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Solution
The fourth proportional to 399,216,087,371.80, 551,108,170,357.50 and 267,455,313,734.44 is: 369,215,603,446.62
Step by Step Solution
- Step 1: Write the proportion equation
399,216,087,371.80 : 551,108,170,357.50 = 267,455,313,734.44 : x - Step 2: Convert to fraction form
399,216,087,371.80/551,108,170,357.50 = 267,455,313,734.44/x - Step 3: Cross multiply
399,216,087,371.80x = 551,108,170,357.50 × 267,455,313,734.44 - Step 4: Simplify right side
399,216,087,371.80x = 147,396,808,604,578,368,978,944 - Step 5: Solve for x
x = 147,396,808,604,578,368,978,944/399,216,087,371.80 - Step 6: Final answer
x = 369,215,603,446.62
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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.