Finding the Fourth Proportional to 221,471,438.40, 332,232,040.80 and 68,116,276.80
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Solution
The fourth proportional to 221,471,438.40, 332,232,040.80 and 68,116,276.80 is: 102,182,068.34
Step by Step Solution
- Step 1: Write the proportion equation
221,471,438.40 : 332,232,040.80 = 68,116,276.80 : x - Step 2: Convert to fraction form
221,471,438.40/332,232,040.80 = 68,116,276.80/x - Step 3: Cross multiply
221,471,438.40x = 332,232,040.80 × 68,116,276.80 - Step 4: Simplify right side
221,471,438.40x = 22,630,409,652,961,692 - Step 5: Solve for x
x = 22,630,409,652,961,692/221,471,438.40 - Step 6: Final answer
x = 102,182,068.34
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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.