Finding the Fourth Proportional to 129,438,124.84, 194,131,001.58 and 47,528,890.12
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Solution
The fourth proportional to 129,438,124.84, 194,131,001.58 and 47,528,890.12 is: 71,283,719.96
Step by Step Solution
- Step 1: Write the proportion equation
129,438,124.84 : 194,131,001.58 = 47,528,890.12 : x - Step 2: Convert to fraction form
129,438,124.84/194,131,001.58 = 47,528,890.12/x - Step 3: Cross multiply
129,438,124.84x = 194,131,001.58 × 47,528,890.12 - Step 4: Simplify right side
129,438,124.84x = 9,226,831,042,981,366 - Step 5: Solve for x
x = 9,226,831,042,981,366/129,438,124.84 - Step 6: Final answer
x = 71,283,719.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.