Finding the Fourth Proportional to 426,059,833.80, 639,089,750.70 and 339,966,391.80
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Solution
The fourth proportional to 426,059,833.80, 639,089,750.70 and 339,966,391.80 is: 509,949,587.70
Step by Step Solution
- Step 1: Write the proportion equation
426,059,833.80 : 639,089,750.70 = 339,966,391.80 : x - Step 2: Convert to fraction form
426,059,833.80/639,089,750.70 = 339,966,391.80/x - Step 3: Cross multiply
426,059,833.80x = 639,089,750.70 × 339,966,391.80 - Step 4: Simplify right side
426,059,833.80x = 217,269,036,581,840,544 - Step 5: Solve for x
x = 217,269,036,581,840,544/426,059,833.80 - Step 6: Final answer
x = 509,949,587.70
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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.