Finding the Fourth Proportional to 74,846,097.20, 112,269,145.80 and 69,247,377.20
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Solution
The fourth proportional to 74,846,097.20, 112,269,145.80 and 69,247,377.20 is: 103,871,065.80
Step by Step Solution
- Step 1: Write the proportion equation
74,846,097.20 : 112,269,145.80 = 69,247,377.20 : x - Step 2: Convert to fraction form
74,846,097.20/112,269,145.80 = 69,247,377.20/x - Step 3: Cross multiply
74,846,097.20x = 112,269,145.80 × 69,247,377.20 - Step 4: Simplify right side
74,846,097.20x = 7,774,343,887,134,396 - Step 5: Solve for x
x = 7,774,343,887,134,396/74,846,097.20 - Step 6: Final answer
x = 103,871,065.80
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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.