Finding the Fourth Proportional to 603,778,129.20, 905,667,193.80 and 603,778,129.20
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Solution
The fourth proportional to 603,778,129.20, 905,667,193.80 and 603,778,129.20 is: 905,667,193.80
Step by Step Solution
- Step 1: Write the proportion equation
603,778,129.20 : 905,667,193.80 = 603,778,129.20 : x - Step 2: Convert to fraction form
603,778,129.20/905,667,193.80 = 603,778,129.20/x - Step 3: Cross multiply
603,778,129.20x = 905,667,193.80 × 603,778,129.20 - Step 4: Simplify right side
603,778,129.20x = 546,822,043,950,377,856 - Step 5: Solve for x
x = 546,822,043,950,377,856/603,778,129.20 - Step 6: Final answer
x = 905,667,193.80
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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.