Finding the Fourth Proportional to 521,553,722.70, 782,330,584.05 and 314,929,461.90
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Solution
The fourth proportional to 521,553,722.70, 782,330,584.05 and 314,929,461.90 is: 472,394,192.85
Step by Step Solution
- Step 1: Write the proportion equation
521,553,722.70 : 782,330,584.05 = 314,929,461.90 : x - Step 2: Convert to fraction form
521,553,722.70/782,330,584.05 = 314,929,461.90/x - Step 3: Cross multiply
521,553,722.70x = 782,330,584.05 × 314,929,461.90 - Step 4: Simplify right side
521,553,722.70x = 246,378,949,862,779,200 - Step 5: Solve for x
x = 246,378,949,862,779,200/521,553,722.70 - Step 6: Final answer
x = 472,394,192.85
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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.