Finding the Fourth Proportional to 75,311,921.70, 112,914,738.45 and 34,390,964.70
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Solution
The fourth proportional to 75,311,921.70, 112,914,738.45 and 34,390,964.70 is: 51,562,178.96
Step by Step Solution
- Step 1: Write the proportion equation
75,311,921.70 : 112,914,738.45 = 34,390,964.70 : x - Step 2: Convert to fraction form
75,311,921.70/112,914,738.45 = 34,390,964.70/x - Step 3: Cross multiply
75,311,921.70x = 112,914,738.45 × 34,390,964.70 - Step 4: Simplify right side
75,311,921.70x = 3,883,246,784,143,683 - Step 5: Solve for x
x = 3,883,246,784,143,683/75,311,921.70 - Step 6: Final answer
x = 51,562,178.96
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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.