Finding the Fourth Proportional to 674,919,258.12, 931,389,943.41 and 377,566,465.98
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Solution
The fourth proportional to 674,919,258.12, 931,389,943.41 and 377,566,465.98 is: 521,042,487.90
Step by Step Solution
- Step 1: Write the proportion equation
674,919,258.12 : 931,389,943.41 = 377,566,465.98 : x - Step 2: Convert to fraction form
674,919,258.12/931,389,943.41 = 377,566,465.98/x - Step 3: Cross multiply
674,919,258.12x = 931,389,943.41 × 377,566,465.98 - Step 4: Simplify right side
674,919,258.12x = 351,661,609,382,625,920 - Step 5: Solve for x
x = 351,661,609,382,625,920/674,919,258.12 - Step 6: Final answer
x = 521,042,487.90
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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.