Finding the Fourth Proportional to 195,722,628.12, 293,698,423.44 and 72,985,738.68
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Solution
The fourth proportional to 195,722,628.12, 293,698,423.44 and 72,985,738.68 is: 109,521,298.53
Step by Step Solution
- Step 1: Write the proportion equation
195,722,628.12 : 293,698,423.44 = 72,985,738.68 : x - Step 2: Convert to fraction form
195,722,628.12/293,698,423.44 = 72,985,738.68/x - Step 3: Cross multiply
195,722,628.12x = 293,698,423.44 × 72,985,738.68 - Step 4: Simplify right side
195,722,628.12x = 21,435,796,383,919,828 - Step 5: Solve for x
x = 21,435,796,383,919,828/195,722,628.12 - Step 6: Final answer
x = 109,521,298.53
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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.