Finding the Fourth Proportional to 221,583,416.44, 332,374,678.98 and 208,099,368.28
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Solution
The fourth proportional to 221,583,416.44, 332,374,678.98 and 208,099,368.28 is: 312,148,633.86
Step by Step Solution
- Step 1: Write the proportion equation
221,583,416.44 : 332,374,678.98 = 208,099,368.28 : x - Step 2: Convert to fraction form
221,583,416.44/332,374,678.98 = 208,099,368.28/x - Step 3: Cross multiply
221,583,416.44x = 332,374,678.98 × 208,099,368.28 - Step 4: Simplify right side
221,583,416.44x = 69,166,960,728,005,800 - Step 5: Solve for x
x = 69,166,960,728,005,800/221,583,416.44 - Step 6: Final answer
x = 312,148,633.86
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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.