Finding the Fourth Proportional to 129,525,994.58, 178,745,581.64 and 73,771,411.19
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Solution
The fourth proportional to 129,525,994.58, 178,745,581.64 and 73,771,411.19 is: 101,804,381.77
Step by Step Solution
- Step 1: Write the proportion equation
129,525,994.58 : 178,745,581.64 = 73,771,411.19 : x - Step 2: Convert to fraction form
129,525,994.58/178,745,581.64 = 73,771,411.19/x - Step 3: Cross multiply
129,525,994.58x = 178,745,581.64 × 73,771,411.19 - Step 4: Simplify right side
129,525,994.58x = 13,186,313,800,850,856 - Step 5: Solve for x
x = 13,186,313,800,850,856/129,525,994.58 - Step 6: Final answer
x = 101,804,381.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.