Finding the Fourth Proportional to 34,130,417.76, 47,099,072.16 and 20,192,491.80
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Solution
The fourth proportional to 34,130,417.76, 47,099,072.16 and 20,192,491.80 is: 27,865,103.65
Step by Step Solution
- Step 1: Write the proportion equation
34,130,417.76 : 47,099,072.16 = 20,192,491.80 : x - Step 2: Convert to fraction form
34,130,417.76/47,099,072.16 = 20,192,491.80/x - Step 3: Cross multiply
34,130,417.76x = 47,099,072.16 × 20,192,491.80 - Step 4: Simplify right side
34,130,417.76x = 951,047,628,378,408.25 - Step 5: Solve for x
x = 951,047,628,378,408.25/34,130,417.76 - Step 6: Final answer
x = 27,865,103.65
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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.