Finding the Fourth Proportional to 221,583,291.31, 332,374,491.01 and 208,099,243.09
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Solution
The fourth proportional to 221,583,291.31, 332,374,491.01 and 208,099,243.09 is: 312,148,445.82
Step by Step Solution
- Step 1: Write the proportion equation
221,583,291.31 : 332,374,491.01 = 208,099,243.09 : x - Step 2: Convert to fraction form
221,583,291.31/332,374,491.01 = 208,099,243.09/x - Step 3: Cross multiply
221,583,291.31x = 332,374,491.01 × 208,099,243.09 - Step 4: Simplify right side
221,583,291.31x = 69,166,880,001,605,008 - Step 5: Solve for x
x = 69,166,880,001,605,008/221,583,291.31 - Step 6: Final answer
x = 312,148,445.82
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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.