Finding the Fourth Proportional to 682,721,233.12, 942,155,277.60 and 369,455,443.84
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Solution
The fourth proportional to 682,721,233.12, 942,155,277.60 and 369,455,443.84 is: 509,848,499.45
Step by Step Solution
- Step 1: Write the proportion equation
682,721,233.12 : 942,155,277.60 = 369,455,443.84 : x - Step 2: Convert to fraction form
682,721,233.12/942,155,277.60 = 369,455,443.84/x - Step 3: Cross multiply
682,721,233.12x = 942,155,277.60 × 369,455,443.84 - Step 4: Simplify right side
682,721,233.12x = 348,084,396,251,906,368 - Step 5: Solve for x
x = 348,084,396,251,906,368/682,721,233.12 - Step 6: Final answer
x = 509,848,499.45
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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.