Finding the Fourth Proportional to 1,145,127,223.80, 1,718,586,630.90 and 531,787,447.80
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Solution
The fourth proportional to 1,145,127,223.80, 1,718,586,630.90 and 531,787,447.80 is: 798,097,171.45
Step by Step Solution
- Step 1: Write the proportion equation
1,145,127,223.80 : 1,718,586,630.90 = 531,787,447.80 : x - Step 2: Convert to fraction form
1,145,127,223.80/1,718,586,630.90 = 531,787,447.80/x - Step 3: Cross multiply
1,145,127,223.80x = 1,718,586,630.90 × 531,787,447.80 - Step 4: Simplify right side
1,145,127,223.80x = 913,922,798,269,511,680 - Step 5: Solve for x
x = 913,922,798,269,511,680/1,145,127,223.80 - Step 6: Final answer
x = 798,097,171.45
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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.