Finding the Fourth Proportional to 1,255,723,012.47, 1,733,062,769.18 and 720,084,292.87
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Solution
The fourth proportional to 1,255,723,012.47, 1,733,062,769.18 and 720,084,292.87 is: 993,810,948.95
Step by Step Solution
- Step 1: Write the proportion equation
1,255,723,012.47 : 1,733,062,769.18 = 720,084,292.87 : x - Step 2: Convert to fraction form
1,255,723,012.47/1,733,062,769.18 = 720,084,292.87/x - Step 3: Cross multiply
1,255,723,012.47x = 1,733,062,769.18 × 720,084,292.87 - Step 4: Simplify right side
1,255,723,012.47x = 1,247,951,278,639,460,096 - Step 5: Solve for x
x = 1,247,951,278,639,460,096/1,255,723,012.47 - Step 6: Final answer
x = 993,810,948.95
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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.