Finding the Fourth Proportional to 84,038,311.94, 115,972,869.21 and 45,407,143.94
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Solution
The fourth proportional to 84,038,311.94, 115,972,869.21 and 45,407,143.94 is: 62,661,857.95
Step by Step Solution
- Step 1: Write the proportion equation
84,038,311.94 : 115,972,869.21 = 45,407,143.94 : x - Step 2: Convert to fraction form
84,038,311.94/115,972,869.21 = 45,407,143.94/x - Step 3: Cross multiply
84,038,311.94x = 115,972,869.21 × 45,407,143.94 - Step 4: Simplify right side
84,038,311.94x = 5,265,996,765,353,264 - Step 5: Solve for x
x = 5,265,996,765,353,264/84,038,311.94 - Step 6: Final answer
x = 62,661,857.95
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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.