Finding the Fourth Proportional to 115,211,577,207.30, 172,817,365,810.95 and 115,211,577,207.30
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Solution
The fourth proportional to 115,211,577,207.30, 172,817,365,810.95 and 115,211,577,207.30 is: 172,817,365,810.95
Step by Step Solution
- Step 1: Write the proportion equation
115,211,577,207.30 : 172,817,365,810.95 = 115,211,577,207.30 : x - Step 2: Convert to fraction form
115,211,577,207.30/172,817,365,810.95 = 115,211,577,207.30/x - Step 3: Cross multiply
115,211,577,207.30x = 172,817,365,810.95 × 115,211,577,207.30 - Step 4: Simplify right side
115,211,577,207.30x = 19,910,561,283,890,474,909,696 - Step 5: Solve for x
x = 19,910,561,283,890,474,909,696/115,211,577,207.30 - Step 6: Final answer
x = 172,817,365,810.95
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1.5x scale
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.