Finding the Fourth Proportional to 57,719,272.74, 79,652,639.34 and 31,257,831.96
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Solution
The fourth proportional to 57,719,272.74, 79,652,639.34 and 31,257,831.96 is: 43,135,831.37
Step by Step Solution
- Step 1: Write the proportion equation
57,719,272.74 : 79,652,639.34 = 31,257,831.96 : x - Step 2: Convert to fraction form
57,719,272.74/79,652,639.34 = 31,257,831.96/x - Step 3: Cross multiply
57,719,272.74x = 79,652,639.34 × 31,257,831.96 - Step 4: Simplify right side
57,719,272.74x = 2,489,768,815,660,205.50 - Step 5: Solve for x
x = 2,489,768,815,660,205.50/57,719,272.74 - Step 6: Final answer
x = 43,135,831.37
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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.