Finding the Fourth Proportional to 221,420,006.70, 332,130,010.05 and 106,376,808.30
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Solution
The fourth proportional to 221,420,006.70, 332,130,010.05 and 106,376,808.30 is: 159,565,212.45
Step by Step Solution
- Step 1: Write the proportion equation
221,420,006.70 : 332,130,010.05 = 106,376,808.30 : x - Step 2: Convert to fraction form
221,420,006.70/332,130,010.05 = 106,376,808.30/x - Step 3: Cross multiply
221,420,006.70x = 332,130,010.05 × 106,376,808.30 - Step 4: Simplify right side
221,420,006.70x = 35,330,930,409,765,924 - Step 5: Solve for x
x = 35,330,930,409,765,924/221,420,006.70 - Step 6: Final answer
x = 159,565,212.45
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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.