Finding the Fourth Proportional to 6,639,373,532.99, 9,162,344,403.74 and 3,819,924,910.10
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Solution
The fourth proportional to 6,639,373,532.99, 9,162,344,403.74 and 3,819,924,910.10 is: 5,271,501,512.73
Step by Step Solution
- Step 1: Write the proportion equation
6,639,373,532.99 : 9,162,344,403.74 = 3,819,924,910.10 : x - Step 2: Convert to fraction form
6,639,373,532.99/9,162,344,403.74 = 3,819,924,910.10/x - Step 3: Cross multiply
6,639,373,532.99x = 9,162,344,403.74 × 3,819,924,910.10 - Step 4: Simplify right side
6,639,373,532.99x = 34,999,467,622,761,754,624 - Step 5: Solve for x
x = 34,999,467,622,761,754,624/6,639,373,532.99 - Step 6: Final answer
x = 5,271,501,512.73
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Double scale
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1.5x scale
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.