Finding the Fourth Proportional to 1,026,505,999.20, 1,539,758,998.80 and 336,246,808.80
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Solution
The fourth proportional to 1,026,505,999.20, 1,539,758,998.80 and 336,246,808.80 is: 504,370,213.20
Step by Step Solution
- Step 1: Write the proportion equation
1,026,505,999.20 : 1,539,758,998.80 = 336,246,808.80 : x - Step 2: Convert to fraction form
1,026,505,999.20/1,539,758,998.80 = 336,246,808.80/x - Step 3: Cross multiply
1,026,505,999.20x = 1,539,758,998.80 × 336,246,808.80 - Step 4: Simplify right side
1,026,505,999.20x = 517,739,049,667,583,040 - Step 5: Solve for x
x = 517,739,049,667,583,040/1,026,505,999.20 - Step 6: Final answer
x = 504,370,213.20
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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.