Finding the Fourth Proportional to 1,023,861,879.48, 1,412,919,348.84 and 553,952,889.93
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Solution
The fourth proportional to 1,023,861,879.48, 1,412,919,348.84 and 553,952,889.93 is: 764,449,553.42
Step by Step Solution
- Step 1: Write the proportion equation
1,023,861,879.48 : 1,412,919,348.84 = 553,952,889.93 : x - Step 2: Convert to fraction form
1,023,861,879.48/1,412,919,348.84 = 553,952,889.93/x - Step 3: Cross multiply
1,023,861,879.48x = 1,412,919,348.84 × 553,952,889.93 - Step 4: Simplify right side
1,023,861,879.48x = 782,690,756,527,931,648 - Step 5: Solve for x
x = 782,690,756,527,931,648/1,023,861,879.48 - Step 6: Final answer
x = 764,449,553.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.