Finding the Fourth Proportional to 1,233,175,774.81, 1,701,780,728.94 and 668,659,630.75
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Solution
The fourth proportional to 1,233,175,774.81, 1,701,780,728.94 and 668,659,630.75 is: 922,749,292.58
Step by Step Solution
- Step 1: Write the proportion equation
1,233,175,774.81 : 1,701,780,728.94 = 668,659,630.75 : x - Step 2: Convert to fraction form
1,233,175,774.81/1,701,780,728.94 = 668,659,630.75/x - Step 3: Cross multiply
1,233,175,774.81x = 1,701,780,728.94 × 668,659,630.75 - Step 4: Simplify right side
1,233,175,774.81x = 1,137,912,073,830,486,272 - Step 5: Solve for x
x = 1,137,912,073,830,486,272/1,233,175,774.81 - Step 6: Final answer
x = 922,749,292.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.