Finding the Fourth Proportional to 138,094,772.77, 207,119,064.43 and 50,638,217.41
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Solution
The fourth proportional to 138,094,772.77, 207,119,064.43 and 50,638,217.41 is: 75,948,857.46
Step by Step Solution
- Step 1: Write the proportion equation
138,094,772.77 : 207,119,064.43 = 50,638,217.41 : x - Step 2: Convert to fraction form
138,094,772.77/207,119,064.43 = 50,638,217.41/x - Step 3: Cross multiply
138,094,772.77x = 207,119,064.43 × 50,638,217.41 - Step 4: Simplify right side
138,094,772.77x = 10,488,140,213,073,352 - Step 5: Solve for x
x = 10,488,140,213,073,352/138,094,772.77 - Step 6: Final answer
x = 75,948,857.46
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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.