Finding the Fourth Proportional to 381,819,449.36, 572,420,243.18 and 119,368,972.27
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Solution
The fourth proportional to 381,819,449.36, 572,420,243.18 and 119,368,972.27 is: 178,956,876.73
Step by Step Solution
- Step 1: Write the proportion equation
381,819,449.36 : 572,420,243.18 = 119,368,972.27 : x - Step 2: Convert to fraction form
381,819,449.36/572,420,243.18 = 119,368,972.27/x - Step 3: Cross multiply
381,819,449.36x = 572,420,243.18 × 119,368,972.27 - Step 4: Simplify right side
381,819,449.36x = 68,329,216,132,731,296 - Step 5: Solve for x
x = 68,329,216,132,731,296/381,819,449.36 - Step 6: Final answer
x = 178,956,876.73
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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.