Finding the Fourth Proportional to 111,169,974.99, 153,405,530.97 and 61,612,437.44
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Solution
The fourth proportional to 111,169,974.99, 153,405,530.97 and 61,612,437.44 is: 85,020,156.57
Step by Step Solution
- Step 1: Write the proportion equation
111,169,974.99 : 153,405,530.97 = 61,612,437.44 : x - Step 2: Convert to fraction form
111,169,974.99/153,405,530.97 = 61,612,437.44/x - Step 3: Cross multiply
111,169,974.99x = 153,405,530.97 × 61,612,437.44 - Step 4: Simplify right side
111,169,974.99x = 9,451,688,679,072,080 - Step 5: Solve for x
x = 9,451,688,679,072,080/111,169,974.99 - Step 6: Final answer
x = 85,020,156.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.