Finding the Fourth Proportional to 221,435,710.70, 332,153,566.05 and 129,224,792.30
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Solution
The fourth proportional to 221,435,710.70, 332,153,566.05 and 129,224,792.30 is: 193,837,188.45
Step by Step Solution
- Step 1: Write the proportion equation
221,435,710.70 : 332,153,566.05 = 129,224,792.30 : x - Step 2: Convert to fraction form
221,435,710.70/332,153,566.05 = 129,224,792.30/x - Step 3: Cross multiply
221,435,710.70x = 332,153,566.05 × 129,224,792.30 - Step 4: Simplify right side
221,435,710.70x = 42,922,475,584,515,584 - Step 5: Solve for x
x = 42,922,475,584,515,584/221,435,710.70 - Step 6: Final answer
x = 193,837,188.45
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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.