Finding the Fourth Proportional to 1,224,327,378.44, 1,836,301,760.90 and 447,791,446.28
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Solution
The fourth proportional to 1,224,327,378.44, 1,836,301,760.90 and 447,791,446.28 is: 671,617,931.45
Step by Step Solution
- Step 1: Write the proportion equation
1,224,327,378.44 : 1,836,301,760.90 = 447,791,446.28 : x - Step 2: Convert to fraction form
1,224,327,378.44/1,836,301,760.90 = 447,791,446.28/x - Step 3: Cross multiply
1,224,327,378.44x = 1,836,301,760.90 × 447,791,446.28 - Step 4: Simplify right side
1,224,327,378.44x = 822,280,221,325,632,000 - Step 5: Solve for x
x = 822,280,221,325,632,000/1,224,327,378.44 - Step 6: Final answer
x = 671,617,931.45
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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.