Finding the Fourth Proportional to 139,968,137.70, 209,952,206.55 and 125,859,363.30
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Solution
The fourth proportional to 139,968,137.70, 209,952,206.55 and 125,859,363.30 is: 188,789,044.95
Step by Step Solution
- Step 1: Write the proportion equation
139,968,137.70 : 209,952,206.55 = 125,859,363.30 : x - Step 2: Convert to fraction form
139,968,137.70/209,952,206.55 = 125,859,363.30/x - Step 3: Cross multiply
139,968,137.70x = 209,952,206.55 × 125,859,363.30 - Step 4: Simplify right side
139,968,137.70x = 26,424,451,039,813,092 - Step 5: Solve for x
x = 26,424,451,039,813,092/139,968,137.70 - Step 6: Final answer
x = 188,789,044.95
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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.