Finding the Fourth Proportional to 7,419,762,149.40, 11,129,643,224.10 and 5,211,465,362.10
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Solution
The fourth proportional to 7,419,762,149.40, 11,129,643,224.10 and 5,211,465,362.10 is: 7,817,198,043.15
Step by Step Solution
- Step 1: Write the proportion equation
7,419,762,149.40 : 11,129,643,224.10 = 5,211,465,362.10 : x - Step 2: Convert to fraction form
7,419,762,149.40/11,129,643,224.10 = 5,211,465,362.10/x - Step 3: Cross multiply
7,419,762,149.40x = 11,129,643,224.10 × 5,211,465,362.10 - Step 4: Simplify right side
7,419,762,149.40x = 58,001,750,154,928,128,000 - Step 5: Solve for x
x = 58,001,750,154,928,128,000/7,419,762,149.40 - Step 6: Final answer
x = 7,817,198,043.15
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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.