Finding the Fourth Proportional to 839,811,751.20, 1,259,717,626.80 and 717,367,744.80
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Solution
The fourth proportional to 839,811,751.20, 1,259,717,626.80 and 717,367,744.80 is: 1,076,051,617.20
Step by Step Solution
- Step 1: Write the proportion equation
839,811,751.20 : 1,259,717,626.80 = 717,367,744.80 : x - Step 2: Convert to fraction form
839,811,751.20/1,259,717,626.80 = 717,367,744.80/x - Step 3: Cross multiply
839,811,751.20x = 1,259,717,626.80 × 717,367,744.80 - Step 4: Simplify right side
839,811,751.20x = 903,680,793,022,323,968 - Step 5: Solve for x
x = 903,680,793,022,323,968/839,811,751.20 - Step 6: Final answer
x = 1,076,051,617.20
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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.