Finding the Fourth Proportional to 3,516,491,213.20, 5,274,736,819.80 and 896,290,253.20
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Solution
The fourth proportional to 3,516,491,213.20, 5,274,736,819.80 and 896,290,253.20 is: 1,344,435,379.80
Step by Step Solution
- Step 1: Write the proportion equation
3,516,491,213.20 : 5,274,736,819.80 = 896,290,253.20 : x - Step 2: Convert to fraction form
3,516,491,213.20/5,274,736,819.80 = 896,290,253.20/x - Step 3: Cross multiply
3,516,491,213.20x = 5,274,736,819.80 × 896,290,253.20 - Step 4: Simplify right side
3,516,491,213.20x = 4,727,695,199,781,905,408 - Step 5: Solve for x
x = 4,727,695,199,781,905,408/3,516,491,213.20 - Step 6: Final answer
x = 1,344,435,379.80
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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.