Finding the Fourth Proportional to 1,021,796,557.20, 1,532,694,835.80 and 699,310,285.20
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Solution
The fourth proportional to 1,021,796,557.20, 1,532,694,835.80 and 699,310,285.20 is: 1,048,965,427.80
Step by Step Solution
- Step 1: Write the proportion equation
1,021,796,557.20 : 1,532,694,835.80 = 699,310,285.20 : x - Step 2: Convert to fraction form
1,021,796,557.20/1,532,694,835.80 = 699,310,285.20/x - Step 3: Cross multiply
1,021,796,557.20x = 1,532,694,835.80 × 699,310,285.20 - Step 4: Simplify right side
1,021,796,557.20x = 1,071,829,262,747,865,216 - Step 5: Solve for x
x = 1,071,829,262,747,865,216/1,021,796,557.20 - Step 6: Final answer
x = 1,048,965,427.80
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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.