Finding the Fourth Proportional to 347,759,311.20, 521,638,966.80 and 186,516,175.20
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Solution
The fourth proportional to 347,759,311.20, 521,638,966.80 and 186,516,175.20 is: 279,774,262.80
Step by Step Solution
- Step 1: Write the proportion equation
347,759,311.20 : 521,638,966.80 = 186,516,175.20 : x - Step 2: Convert to fraction form
347,759,311.20/521,638,966.80 = 186,516,175.20/x - Step 3: Cross multiply
347,759,311.20x = 521,638,966.80 × 186,516,175.20 - Step 4: Simplify right side
347,759,311.20x = 97,294,104,922,815,776 - Step 5: Solve for x
x = 97,294,104,922,815,776/347,759,311.20 - Step 6: Final answer
x = 279,774,262.80
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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.