Finding the Fourth Proportional to 221,430,851.20, 332,146,276.80 and 106,387,652.80
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Solution
The fourth proportional to 221,430,851.20, 332,146,276.80 and 106,387,652.80 is: 159,581,479.20
Step by Step Solution
- Step 1: Write the proportion equation
221,430,851.20 : 332,146,276.80 = 106,387,652.80 : x - Step 2: Convert to fraction form
221,430,851.20/332,146,276.80 = 106,387,652.80/x - Step 3: Cross multiply
221,430,851.20x = 332,146,276.80 × 106,387,652.80 - Step 4: Simplify right side
221,430,851.20x = 35,336,262,775,011,096 - Step 5: Solve for x
x = 35,336,262,775,011,096/221,430,851.20 - Step 6: Final answer
x = 159,581,479.20
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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.