Finding the Fourth Proportional to 1,183,464,793.80, 1,775,197,190.70 and 493,866,952.20
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Solution
The fourth proportional to 1,183,464,793.80, 1,775,197,190.70 and 493,866,952.20 is: 740,800,428.30
Step by Step Solution
- Step 1: Write the proportion equation
1,183,464,793.80 : 1,775,197,190.70 = 493,866,952.20 : x - Step 2: Convert to fraction form
1,183,464,793.80/1,775,197,190.70 = 493,866,952.20/x - Step 3: Cross multiply
1,183,464,793.80x = 1,775,197,190.70 × 493,866,952.20 - Step 4: Simplify right side
1,183,464,793.80x = 876,711,226,125,011,200 - Step 5: Solve for x
x = 876,711,226,125,011,200/1,183,464,793.80 - Step 6: Final answer
x = 740,800,428.30
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Double scale
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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.