Finding the Fourth Proportional to 852,192,886.70, 1,278,289,330.05 and 818,749,865.90
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Solution
The fourth proportional to 852,192,886.70, 1,278,289,330.05 and 818,749,865.90 is: 1,228,124,798.85
Step by Step Solution
- Step 1: Write the proportion equation
852,192,886.70 : 1,278,289,330.05 = 818,749,865.90 : x - Step 2: Convert to fraction form
852,192,886.70/1,278,289,330.05 = 818,749,865.90/x - Step 3: Cross multiply
852,192,886.70x = 1,278,289,330.05 × 818,749,865.90 - Step 4: Simplify right side
852,192,886.70x = 1,046,599,217,559,838,208 - Step 5: Solve for x
x = 1,046,599,217,559,838,208/852,192,886.70 - Step 6: Final answer
x = 1,228,124,798.85
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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.