Finding the Fourth Proportional to 110,128,267.70, 165,192,401.55 and 92,212,363.70
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Solution
The fourth proportional to 110,128,267.70, 165,192,401.55 and 92,212,363.70 is: 138,318,545.55
Step by Step Solution
- Step 1: Write the proportion equation
110,128,267.70 : 165,192,401.55 = 92,212,363.70 : x - Step 2: Convert to fraction form
110,128,267.70/165,192,401.55 = 92,212,363.70/x - Step 3: Cross multiply
110,128,267.70x = 165,192,401.55 × 92,212,363.70 - Step 4: Simplify right side
110,128,267.70x = 15,232,781,812,205,046 - Step 5: Solve for x
x = 15,232,781,812,205,046/110,128,267.70 - Step 6: Final answer
x = 138,318,545.55
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1.5x scale
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.