Finding the Fourth Proportional to 60,285,620.79, 90,344,655.42 and 31,474,285.09
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Solution
The fourth proportional to 60,285,620.79, 90,344,655.42 and 31,474,285.09 is: 47,167,689.47
Step by Step Solution
- Step 1: Write the proportion equation
60,285,620.79 : 90,344,655.42 = 31,474,285.09 : x - Step 2: Convert to fraction form
60,285,620.79/90,344,655.42 = 31,474,285.09/x - Step 3: Cross multiply
60,285,620.79x = 90,344,655.42 × 31,474,285.09 - Step 4: Simplify right side
60,285,620.79x = 2,843,533,440,703,003.50 - Step 5: Solve for x
x = 2,843,533,440,703,003.50/60,285,620.79 - Step 6: Final answer
x = 47,167,689.47
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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.