Finding the Fourth Proportional to 577,471,640.70, 866,207,461.05 and 347,889,128.70
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Solution
The fourth proportional to 577,471,640.70, 866,207,461.05 and 347,889,128.70 is: 521,833,693.05
Step by Step Solution
- Step 1: Write the proportion equation
577,471,640.70 : 866,207,461.05 = 347,889,128.70 : x - Step 2: Convert to fraction form
577,471,640.70/866,207,461.05 = 347,889,128.70/x - Step 3: Cross multiply
577,471,640.70x = 866,207,461.05 × 347,889,128.70 - Step 4: Simplify right side
577,471,640.70x = 301,344,158,898,123,648 - Step 5: Solve for x
x = 301,344,158,898,123,648/577,471,640.70 - Step 6: Final answer
x = 521,833,693.05
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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.