Finding the Fourth Proportional to 517,967,207.80, 776,950,811.70 and 494,079,335.80
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Solution
The fourth proportional to 517,967,207.80, 776,950,811.70 and 494,079,335.80 is: 741,119,003.70
Step by Step Solution
- Step 1: Write the proportion equation
517,967,207.80 : 776,950,811.70 = 494,079,335.80 : x - Step 2: Convert to fraction form
517,967,207.80/776,950,811.70 = 494,079,335.80/x - Step 3: Cross multiply
517,967,207.80x = 776,950,811.70 × 494,079,335.80 - Step 4: Simplify right side
517,967,207.80x = 383,875,340,994,006,912 - Step 5: Solve for x
x = 383,875,340,994,006,912/517,967,207.80 - Step 6: Final answer
x = 741,119,003.70
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1.5x scale
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.