Finding the Fourth Proportional to 691,216,985.49, 1,036,826,476.13 and 282,273,135.99
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Solution
The fourth proportional to 691,216,985.49, 1,036,826,476.13 and 282,273,135.99 is: 423,410,111.49
Step by Step Solution
- Step 1: Write the proportion equation
691,216,985.49 : 1,036,826,476.13 = 282,273,135.99 : x - Step 2: Convert to fraction form
691,216,985.49/1,036,826,476.13 = 282,273,135.99/x - Step 3: Cross multiply
691,216,985.49x = 1,036,826,476.13 × 282,273,135.99 - Step 4: Simplify right side
691,216,985.49x = 292,668,260,893,264,640 - Step 5: Solve for x
x = 292,668,260,893,264,640/691,216,985.49 - Step 6: Final answer
x = 423,410,111.49
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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.