Finding the Fourth Proportional to 664,391,932.80, 996,289,300.80 and 255,312,124.80
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Solution
The fourth proportional to 664,391,932.80, 996,289,300.80 and 255,312,124.80 is: 382,853,441.99
Step by Step Solution
- Step 1: Write the proportion equation
664,391,932.80 : 996,289,300.80 = 255,312,124.80 : x - Step 2: Convert to fraction form
664,391,932.80/996,289,300.80 = 255,312,124.80/x - Step 3: Cross multiply
664,391,932.80x = 996,289,300.80 × 255,312,124.80 - Step 4: Simplify right side
664,391,932.80x = 254,364,738,302,754,336 - Step 5: Solve for x
x = 254,364,738,302,754,336/664,391,932.80 - Step 6: Final answer
x = 382,853,441.99
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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.