Finding the Fourth Proportional to 128,989,809.83, 193,567,955.60 and 47,101,831.94
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Solution
The fourth proportional to 128,989,809.83, 193,567,955.60 and 47,101,831.94 is: 70,683,144.09
Step by Step Solution
- Step 1: Write the proportion equation
128,989,809.83 : 193,567,955.60 = 47,101,831.94 : x - Step 2: Convert to fraction form
128,989,809.83/193,567,955.60 = 47,101,831.94/x - Step 3: Cross multiply
128,989,809.83x = 193,567,955.60 × 47,101,831.94 - Step 4: Simplify right side
128,989,809.83x = 9,117,405,314,242,256 - Step 5: Solve for x
x = 9,117,405,314,242,256/128,989,809.83 - Step 6: Final answer
x = 70,683,144.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.