Finding the Fourth Proportional to 719,685,984.42, 1,079,528,976.23 and 174,427,518.42
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Solution
The fourth proportional to 719,685,984.42, 1,079,528,976.23 and 174,427,518.42 is: 261,641,277.53
Step by Step Solution
- Step 1: Write the proportion equation
719,685,984.42 : 1,079,528,976.23 = 174,427,518.42 : x - Step 2: Convert to fraction form
719,685,984.42/1,079,528,976.23 = 174,427,518.42/x - Step 3: Cross multiply
719,685,984.42x = 1,079,528,976.23 × 174,427,518.42 - Step 4: Simplify right side
719,685,984.42x = 188,299,560,385,409,888 - Step 5: Solve for x
x = 188,299,560,385,409,888/719,685,984.42 - Step 6: Final answer
x = 261,641,277.53
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Double scale
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Similar ratio
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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.