Finding the Fourth Proportional to 247,993,730,353.83, 371,688,385,956.35 and 128,545,201,749.99
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Solution
The fourth proportional to 247,993,730,353.83, 371,688,385,956.35 and 128,545,201,749.99 is: 192,661,155,153.87
Step by Step Solution
- Step 1: Write the proportion equation
247,993,730,353.83 : 371,688,385,956.35 = 128,545,201,749.99 : x - Step 2: Convert to fraction form
247,993,730,353.83/371,688,385,956.35 = 128,545,201,749.99/x - Step 3: Cross multiply
247,993,730,353.83x = 371,688,385,956.35 × 128,545,201,749.99 - Step 4: Simplify right side
247,993,730,353.83x = 47,778,758,560,887,160,700,928 - Step 5: Solve for x
x = 47,778,758,560,887,160,700,928/247,993,730,353.83 - Step 6: Final answer
x = 192,661,155,153.87
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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.