Finding the Fourth Proportional to 84,685,641.84, 116,823,096.72 and 55,334,133.36
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Solution
The fourth proportional to 84,685,641.84, 116,823,096.72 and 55,334,133.36 is: 76,332,949.40
Step by Step Solution
- Step 1: Write the proportion equation
84,685,641.84 : 116,823,096.72 = 55,334,133.36 : x - Step 2: Convert to fraction form
84,685,641.84/116,823,096.72 = 55,334,133.36/x - Step 3: Cross multiply
84,685,641.84x = 116,823,096.72 × 55,334,133.36 - Step 4: Simplify right side
84,685,641.84x = 6,464,304,813,432,658 - Step 5: Solve for x
x = 6,464,304,813,432,658/84,685,641.84 - Step 6: Final answer
x = 76,332,949.40
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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.