Finding the Fourth Proportional to 83,982,330.32, 115,898,072.28 and 49,171,763.84
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Solution
The fourth proportional to 83,982,330.32, 115,898,072.28 and 49,171,763.84 is: 67,858,472.35
Step by Step Solution
- Step 1: Write the proportion equation
83,982,330.32 : 115,898,072.28 = 49,171,763.84 : x - Step 2: Convert to fraction form
83,982,330.32/115,898,072.28 = 49,171,763.84/x - Step 3: Cross multiply
83,982,330.32x = 115,898,072.28 × 49,171,763.84 - Step 4: Simplify right side
83,982,330.32x = 5,698,912,639,663,411 - Step 5: Solve for x
x = 5,698,912,639,663,411/83,982,330.32 - Step 6: Final answer
x = 67,858,472.35
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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.