Finding the Fourth Proportional to 21,014,579.08, 31,522,812.87 and 6,440,430.94
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Solution
The fourth proportional to 21,014,579.08, 31,522,812.87 and 6,440,430.94 is: 9,660,935.80
Step by Step Solution
- Step 1: Write the proportion equation
21,014,579.08 : 31,522,812.87 = 6,440,430.94 : x - Step 2: Convert to fraction form
21,014,579.08/31,522,812.87 = 6,440,430.94/x - Step 3: Cross multiply
21,014,579.08x = 31,522,812.87 × 6,440,430.94 - Step 4: Simplify right side
21,014,579.08x = 203,020,499,323,778.22 - Step 5: Solve for x
x = 203,020,499,323,778.22/21,014,579.08 - Step 6: Final answer
x = 9,660,935.80
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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.