Finding the Fourth Proportional to 215,410,752,129.80, 323,116,128,194.70 and 97,864,505,985.80
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Solution
The fourth proportional to 215,410,752,129.80, 323,116,128,194.70 and 97,864,505,985.80 is: 146,796,758,978.70
Step by Step Solution
- Step 1: Write the proportion equation
215,410,752,129.80 : 323,116,128,194.70 = 97,864,505,985.80 : x - Step 2: Convert to fraction form
215,410,752,129.80/323,116,128,194.70 = 97,864,505,985.80/x - Step 3: Cross multiply
215,410,752,129.80x = 323,116,128,194.70 × 97,864,505,985.80 - Step 4: Simplify right side
215,410,752,129.80x = 31,621,600,261,818,741,161,984 - Step 5: Solve for x
x = 31,621,600,261,818,741,161,984/215,410,752,129.80 - Step 6: Final answer
x = 146,796,758,978.70
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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.