Finding the Fourth Proportional to 187,258,341.80, 280,887,512.70 and 91,706,853.80
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Solution
The fourth proportional to 187,258,341.80, 280,887,512.70 and 91,706,853.80 is: 137,560,280.70
Step by Step Solution
- Step 1: Write the proportion equation
187,258,341.80 : 280,887,512.70 = 91,706,853.80 : x - Step 2: Convert to fraction form
187,258,341.80/280,887,512.70 = 91,706,853.80/x - Step 3: Cross multiply
187,258,341.80x = 280,887,512.70 × 91,706,853.80 - Step 4: Simplify right side
187,258,341.80x = 25,759,310,061,424,540 - Step 5: Solve for x
x = 25,759,310,061,424,540/187,258,341.80 - Step 6: Final answer
x = 137,560,280.70
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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.