Finding the Fourth Proportional to 139,968,108.70, 209,952,163.05 and 130,898,182.30
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Solution
The fourth proportional to 139,968,108.70, 209,952,163.05 and 130,898,182.30 is: 196,347,273.45
Step by Step Solution
- Step 1: Write the proportion equation
139,968,108.70 : 209,952,163.05 = 130,898,182.30 : x - Step 2: Convert to fraction form
139,968,108.70/209,952,163.05 = 130,898,182.30/x - Step 3: Cross multiply
139,968,108.70x = 209,952,163.05 × 130,898,182.30 - Step 4: Simplify right side
139,968,108.70x = 27,482,356,513,198,224 - Step 5: Solve for x
x = 27,482,356,513,198,224/139,968,108.70 - Step 6: Final answer
x = 196,347,273.45
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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.