Finding the Fourth Proportional to 268,145,309.80, 402,217,964.70 and 106,587,245.80
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Solution
The fourth proportional to 268,145,309.80, 402,217,964.70 and 106,587,245.80 is: 159,880,868.70
Step by Step Solution
- Step 1: Write the proportion equation
268,145,309.80 : 402,217,964.70 = 106,587,245.80 : x - Step 2: Convert to fraction form
268,145,309.80/402,217,964.70 = 106,587,245.80/x - Step 3: Cross multiply
268,145,309.80x = 402,217,964.70 × 106,587,245.80 - Step 4: Simplify right side
268,145,309.80x = 42,871,305,068,654,624 - Step 5: Solve for x
x = 42,871,305,068,654,624/268,145,309.80 - Step 6: Final answer
x = 159,880,868.70
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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.