Finding the Fourth Proportional to 260,808,215.70, 391,212,323.55 and 170,108,951.70
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Solution
The fourth proportional to 260,808,215.70, 391,212,323.55 and 170,108,951.70 is: 255,163,427.55
Step by Step Solution
- Step 1: Write the proportion equation
260,808,215.70 : 391,212,323.55 = 170,108,951.70 : x - Step 2: Convert to fraction form
260,808,215.70/391,212,323.55 = 170,108,951.70/x - Step 3: Cross multiply
260,808,215.70x = 391,212,323.55 × 170,108,951.70 - Step 4: Simplify right side
260,808,215.70x = 66,548,718,251,211,720 - Step 5: Solve for x
x = 66,548,718,251,211,720/260,808,215.70 - Step 6: Final answer
x = 255,163,427.55
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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.