Finding the Fourth Proportional to 717,593,917.30, 1,005,311,728.70 and 717,593,917.30
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Solution
The fourth proportional to 717,593,917.30, 1,005,311,728.70 and 717,593,917.30 is: 1,005,311,728.70
Step by Step Solution
- Step 1: Write the proportion equation
717,593,917.30 : 1,005,311,728.70 = 717,593,917.30 : x - Step 2: Convert to fraction form
717,593,917.30/1,005,311,728.70 = 717,593,917.30/x - Step 3: Cross multiply
717,593,917.30x = 1,005,311,728.70 × 717,593,917.30 - Step 4: Simplify right side
717,593,917.30x = 721,405,581,505,467,776 - Step 5: Solve for x
x = 721,405,581,505,467,776/717,593,917.30 - Step 6: Final answer
x = 1,005,311,728.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.