Finding the Fourth Proportional to 470,867,438.81, 649,912,391.56 and 364,811,079.94
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Solution
The fourth proportional to 470,867,438.81, 649,912,391.56 and 364,811,079.94 is: 503,528,640.74
Step by Step Solution
- Step 1: Write the proportion equation
470,867,438.81 : 649,912,391.56 = 364,811,079.94 : x - Step 2: Convert to fraction form
470,867,438.81/649,912,391.56 = 364,811,079.94/x - Step 3: Cross multiply
470,867,438.81x = 649,912,391.56 × 364,811,079.94 - Step 4: Simplify right side
470,867,438.81x = 237,095,241,431,391,712 - Step 5: Solve for x
x = 237,095,241,431,391,712/470,867,438.81 - Step 6: Final answer
x = 503,528,640.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.