Finding the Fourth Proportional to 128,989,811.84, 193,567,958.60 and 47,101,833.94
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Solution
The fourth proportional to 128,989,811.84, 193,567,958.60 and 47,101,833.94 is: 70,683,147.08
Step by Step Solution
- Step 1: Write the proportion equation
128,989,811.84 : 193,567,958.60 = 47,101,833.94 : x - Step 2: Convert to fraction form
128,989,811.84/193,567,958.60 = 47,101,833.94/x - Step 3: Cross multiply
128,989,811.84x = 193,567,958.60 × 47,101,833.94 - Step 4: Simplify right side
128,989,811.84x = 9,117,405,842,081,994 - Step 5: Solve for x
x = 9,117,405,842,081,994/128,989,811.84 - Step 6: Final answer
x = 70,683,147.08
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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.