Finding the Fourth Proportional to 347,689,664.80, 521,534,497.20 and 291,569,495.20
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Solution
The fourth proportional to 347,689,664.80, 521,534,497.20 and 291,569,495.20 is: 437,354,242.80
Step by Step Solution
- Step 1: Write the proportion equation
347,689,664.80 : 521,534,497.20 = 291,569,495.20 : x - Step 2: Convert to fraction form
347,689,664.80/521,534,497.20 = 291,569,495.20/x - Step 3: Cross multiply
347,689,664.80x = 521,534,497.20 × 291,569,495.20 - Step 4: Simplify right side
347,689,664.80x = 152,063,550,077,989,792 - Step 5: Solve for x
x = 152,063,550,077,989,792/347,689,664.80 - Step 6: Final answer
x = 437,354,242.80
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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.