Finding the Fourth Proportional to 110,128,267.20, 165,192,400.80 and 92,212,363.20
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Solution
The fourth proportional to 110,128,267.20, 165,192,400.80 and 92,212,363.20 is: 138,318,544.80
Step by Step Solution
- Step 1: Write the proportion equation
110,128,267.20 : 165,192,400.80 = 92,212,363.20 : x - Step 2: Convert to fraction form
110,128,267.20/165,192,400.80 = 92,212,363.20/x - Step 3: Cross multiply
110,128,267.20x = 165,192,400.80 × 92,212,363.20 - Step 4: Simplify right side
110,128,267.20x = 15,232,781,660,449,572 - Step 5: Solve for x
x = 15,232,781,660,449,572/110,128,267.20 - Step 6: Final answer
x = 138,318,544.80
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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.