Finding the Fourth Proportional to 521,368,710, 782,153,772.84 and 198,227,456.88
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Solution
The fourth proportional to 521,368,710, 782,153,772.84 and 198,227,456.88 is: 297,379,475.03
Step by Step Solution
- Step 1: Write the proportion equation
521,368,710 : 782,153,772.84 = 198,227,456.88 : x - Step 2: Convert to fraction form
521,368,710/782,153,772.84 = 198,227,456.88/x - Step 3: Cross multiply
521,368,710x = 782,153,772.84 × 198,227,456.88 - Step 4: Simplify right side
521,368,710x = 155,044,353,279,170,432 - Step 5: Solve for x
x = 155,044,353,279,170,432/521,368,710 - Step 6: Final answer
x = 297,379,475.03
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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.