Finding the Fourth Proportional to 129,307,727.70, 194,056,069.95 and 91,043,975.70
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Solution
The fourth proportional to 129,307,727.70, 194,056,069.95 and 91,043,975.70 is: 136,632,484.63
Step by Step Solution
- Step 1: Write the proportion equation
129,307,727.70 : 194,056,069.95 = 91,043,975.70 : x - Step 2: Convert to fraction form
129,307,727.70/194,056,069.95 = 91,043,975.70/x - Step 3: Cross multiply
129,307,727.70x = 194,056,069.95 × 91,043,975.70 - Step 4: Simplify right side
129,307,727.70x = 17,667,636,116,965,300 - Step 5: Solve for x
x = 17,667,636,116,965,300/129,307,727.70 - Step 6: Final answer
x = 136,632,484.63
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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.