Finding the Fourth Proportional to 7,224,831,008.85, 10,837,660,659.72 and 1,912,805,133.08
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Solution
The fourth proportional to 7,224,831,008.85, 10,837,660,659.72 and 1,912,805,133.08 is: 2,869,317,346.68
Step by Step Solution
- Step 1: Write the proportion equation
7,224,831,008.85 : 10,837,660,659.72 = 1,912,805,133.08 : x - Step 2: Convert to fraction form
7,224,831,008.85/10,837,660,659.72 = 1,912,805,133.08/x - Step 3: Cross multiply
7,224,831,008.85x = 10,837,660,659.72 × 1,912,805,133.08 - Step 4: Simplify right side
7,224,831,008.85x = 20,730,332,940,491,591,680 - Step 5: Solve for x
x = 20,730,332,940,491,591,680/7,224,831,008.85 - Step 6: Final answer
x = 2,869,317,346.68
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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.