Finding the Fourth Proportional to 219,430,279.80, 329,145,419.70 and 219,430,279.80
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Solution
The fourth proportional to 219,430,279.80, 329,145,419.70 and 219,430,279.80 is: 329,145,419.70
Step by Step Solution
- Step 1: Write the proportion equation
219,430,279.80 : 329,145,419.70 = 219,430,279.80 : x - Step 2: Convert to fraction form
219,430,279.80/329,145,419.70 = 219,430,279.80/x - Step 3: Cross multiply
219,430,279.80x = 329,145,419.70 × 219,430,279.80 - Step 4: Simplify right side
219,430,279.80x = 72,224,471,539,659,440 - Step 5: Solve for x
x = 72,224,471,539,659,440/219,430,279.80 - Step 6: Final answer
x = 329,145,419.70
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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.