Finding the Fourth Proportional to 399,037,331,799.27, 550,667,133,943.10 and 216,129,882,974.31
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Solution
The fourth proportional to 399,037,331,799.27, 550,667,133,943.10 and 216,129,882,974.31 is: 298,256,864,038.95
Step by Step Solution
- Step 1: Write the proportion equation
399,037,331,799.27 : 550,667,133,943.10 = 216,129,882,974.31 : x - Step 2: Convert to fraction form
399,037,331,799.27/550,667,133,943.10 = 216,129,882,974.31/x - Step 3: Cross multiply
399,037,331,799.27x = 550,667,133,943.10 × 216,129,882,974.31 - Step 4: Simplify right side
399,037,331,799.27x = 119,015,623,216,920,891,752,448 - Step 5: Solve for x
x = 119,015,623,216,920,891,752,448/399,037,331,799.27 - Step 6: Final answer
x = 298,256,864,038.95
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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.