Finding the Fourth Proportional to 139,968,758.70, 209,953,138.05 and 49,101,533.10
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Solution
The fourth proportional to 139,968,758.70, 209,953,138.05 and 49,101,533.10 is: 73,652,299.65
Step by Step Solution
- Step 1: Write the proportion equation
139,968,758.70 : 209,953,138.05 = 49,101,533.10 : x - Step 2: Convert to fraction form
139,968,758.70/209,953,138.05 = 49,101,533.10/x - Step 3: Cross multiply
139,968,758.70x = 209,953,138.05 × 49,101,533.10 - Step 4: Simplify right side
139,968,758.70x = 10,309,020,957,410,946 - Step 5: Solve for x
x = 10,309,020,957,410,946/139,968,758.70 - Step 6: Final answer
x = 73,652,299.65
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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.