Finding the Fourth Proportional to 120,303,860.08, 166,015,031.34 and 68,091,774.70
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Solution
The fourth proportional to 120,303,860.08, 166,015,031.34 and 68,091,774.70 is: 93,964,217.80
Step by Step Solution
- Step 1: Write the proportion equation
120,303,860.08 : 166,015,031.34 = 68,091,774.70 : x - Step 2: Convert to fraction form
120,303,860.08/166,015,031.34 = 68,091,774.70/x - Step 3: Cross multiply
120,303,860.08x = 166,015,031.34 × 68,091,774.70 - Step 4: Simplify right side
120,303,860.08x = 11,304,258,110,816,720 - Step 5: Solve for x
x = 11,304,258,110,816,720/120,303,860.08 - Step 6: Final answer
x = 93,964,217.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.