Finding the Fourth Proportional to 131,128,107.80, 196,692,161.70 and 63,103,659.80
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Solution
The fourth proportional to 131,128,107.80, 196,692,161.70 and 63,103,659.80 is: 94,655,489.70
Step by Step Solution
- Step 1: Write the proportion equation
131,128,107.80 : 196,692,161.70 = 63,103,659.80 : x - Step 2: Convert to fraction form
131,128,107.80/196,692,161.70 = 63,103,659.80/x - Step 3: Cross multiply
131,128,107.80x = 196,692,161.70 × 63,103,659.80 - Step 4: Simplify right side
131,128,107.80x = 12,411,995,257,243,388 - Step 5: Solve for x
x = 12,411,995,257,243,388/131,128,107.80 - Step 6: Final answer
x = 94,655,489.70
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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.