Finding the Fourth Proportional to 682,595,425.49, 941,974,980.95 and 369,322,765.79
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Solution
The fourth proportional to 682,595,425.49, 941,974,980.95 and 369,322,765.79 is: 509,661,788.34
Step by Step Solution
- Step 1: Write the proportion equation
682,595,425.49 : 941,974,980.95 = 369,322,765.79 : x - Step 2: Convert to fraction form
682,595,425.49/941,974,980.95 = 369,322,765.79/x - Step 3: Cross multiply
682,595,425.49x = 941,974,980.95 × 369,322,765.79 - Step 4: Simplify right side
682,595,425.49x = 347,892,805,265,649,984 - Step 5: Solve for x
x = 347,892,805,265,649,984/682,595,425.49 - Step 6: Final answer
x = 509,661,788.34
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.