Finding the Fourth Proportional to 908,553,359.34, 1,253,804,523.39 and 490,865,976.99
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Solution
The fourth proportional to 908,553,359.34, 1,253,804,523.39 and 490,865,976.99 is: 677,395,527.74
Step by Step Solution
- Step 1: Write the proportion equation
908,553,359.34 : 1,253,804,523.39 = 490,865,976.99 : x - Step 2: Convert to fraction form
908,553,359.34/1,253,804,523.39 = 490,865,976.99/x - Step 3: Cross multiply
908,553,359.34x = 1,253,804,523.39 × 490,865,976.99 - Step 4: Simplify right side
908,553,359.34x = 615,449,982,328,313,728 - Step 5: Solve for x
x = 615,449,982,328,313,728/908,553,359.34 - Step 6: Final answer
x = 677,395,527.74
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1.5x scale
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.