Finding the Fourth Proportional to 141,729,305.28, 195,586,439.76 and 76,539,209.28
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Solution
The fourth proportional to 141,729,305.28, 195,586,439.76 and 76,539,209.28 is: 105,624,107.98
Step by Step Solution
- Step 1: Write the proportion equation
141,729,305.28 : 195,586,439.76 = 76,539,209.28 : x - Step 2: Convert to fraction form
141,729,305.28/195,586,439.76 = 76,539,209.28/x - Step 3: Cross multiply
141,729,305.28x = 195,586,439.76 × 76,539,209.28 - Step 4: Simplify right side
141,729,305.28x = 14,970,031,445,120,752 - Step 5: Solve for x
x = 14,970,031,445,120,752/141,729,305.28 - Step 6: Final answer
x = 105,624,107.98
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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.