Finding the Fourth Proportional to 277,758,217.80, 416,660,045.58 and 139,512,740.04
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Solution
The fourth proportional to 277,758,217.80, 416,660,045.58 and 139,512,740.04 is: 209,280,521.33
Step by Step Solution
- Step 1: Write the proportion equation
277,758,217.80 : 416,660,045.58 = 139,512,740.04 : x - Step 2: Convert to fraction form
277,758,217.80/416,660,045.58 = 139,512,740.04/x - Step 3: Cross multiply
277,758,217.80x = 416,660,045.58 × 139,512,740.04 - Step 4: Simplify right side
277,758,217.80x = 58,129,384,624,057,088 - Step 5: Solve for x
x = 58,129,384,624,057,088/277,758,217.80 - Step 6: Final answer
x = 209,280,521.33
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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.