Finding the Fourth Proportional to 3,219,340,830.60, 4,829,011,245.90 and 1,979,595,265.80
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Solution
The fourth proportional to 3,219,340,830.60, 4,829,011,245.90 and 1,979,595,265.80 is: 2,969,392,898.70
Step by Step Solution
- Step 1: Write the proportion equation
3,219,340,830.60 : 4,829,011,245.90 = 1,979,595,265.80 : x - Step 2: Convert to fraction form
3,219,340,830.60/4,829,011,245.90 = 1,979,595,265.80/x - Step 3: Cross multiply
3,219,340,830.60x = 4,829,011,245.90 × 1,979,595,265.80 - Step 4: Simplify right side
3,219,340,830.60x = 9,559,487,800,878,598,144 - Step 5: Solve for x
x = 9,559,487,800,878,598,144/3,219,340,830.60 - Step 6: Final answer
x = 2,969,392,898.70
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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.