Finding the Fourth Proportional to 195,722,622.87, 293,698,415.55 and 72,985,733.43
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Solution
The fourth proportional to 195,722,622.87, 293,698,415.55 and 72,985,733.43 is: 109,521,290.65
Step by Step Solution
- Step 1: Write the proportion equation
195,722,622.87 : 293,698,415.55 = 72,985,733.43 : x - Step 2: Convert to fraction form
195,722,622.87/293,698,415.55 = 72,985,733.43/x - Step 3: Cross multiply
195,722,622.87x = 293,698,415.55 × 72,985,733.43 - Step 4: Simplify right side
195,722,622.87x = 21,435,794,266,145,668 - Step 5: Solve for x
x = 21,435,794,266,145,668/195,722,622.87 - Step 6: Final answer
x = 109,521,290.65
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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.