Finding the Fourth Proportional to 848,280,139.80, 1,272,420,209.70 and 440,133,451.80
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Solution
The fourth proportional to 848,280,139.80, 1,272,420,209.70 and 440,133,451.80 is: 660,200,177.70
Step by Step Solution
- Step 1: Write the proportion equation
848,280,139.80 : 1,272,420,209.70 = 440,133,451.80 : x - Step 2: Convert to fraction form
848,280,139.80/1,272,420,209.70 = 440,133,451.80/x - Step 3: Cross multiply
848,280,139.80x = 1,272,420,209.70 × 440,133,451.80 - Step 4: Simplify right side
848,280,139.80x = 560,034,699,035,340,864 - Step 5: Solve for x
x = 560,034,699,035,340,864/848,280,139.80 - Step 6: Final answer
x = 660,200,177.70
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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.