Finding the Fourth Proportional to 2,129,913,679.11, 3,195,213,824.05 and 656,052,802.72
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Solution
The fourth proportional to 2,129,913,679.11, 3,195,213,824.05 and 656,052,802.72 is: 984,184,948.48
Step by Step Solution
- Step 1: Write the proportion equation
2,129,913,679.11 : 3,195,213,824.05 = 656,052,802.72 : x - Step 2: Convert to fraction form
2,129,913,679.11/3,195,213,824.05 = 656,052,802.72/x - Step 3: Cross multiply
2,129,913,679.11x = 3,195,213,824.05 × 656,052,802.72 - Step 4: Simplify right side
2,129,913,679.11x = 2,096,228,984,548,063,232 - Step 5: Solve for x
x = 2,096,228,984,548,063,232/2,129,913,679.11 - Step 6: Final answer
x = 984,184,948.48
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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.