Finding the Fourth Proportional to 5,341,831.09, 7,374,268.85 and 3,578,765.18
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Solution
The fourth proportional to 5,341,831.09, 7,374,268.85 and 3,578,765.18 is: 4,940,398.92
Step by Step Solution
- Step 1: Write the proportion equation
5,341,831.09 : 7,374,268.85 = 3,578,765.18 : x - Step 2: Convert to fraction form
5,341,831.09/7,374,268.85 = 3,578,765.18/x - Step 3: Cross multiply
5,341,831.09x = 7,374,268.85 × 3,578,765.18 - Step 4: Simplify right side
5,341,831.09x = 26,390,776,533,573.47 - Step 5: Solve for x
x = 26,390,776,533,573.47/5,341,831.09 - Step 6: Final answer
x = 4,940,398.92
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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.