Finding the Fourth Proportional to 69,162,137.79, 103,727,926.59 and 19,967,305.29
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Solution
The fourth proportional to 69,162,137.79, 103,727,926.59 and 19,967,305.29 is: 29,946,546.53
Step by Step Solution
- Step 1: Write the proportion equation
69,162,137.79 : 103,727,926.59 = 19,967,305.29 : x - Step 2: Convert to fraction form
69,162,137.79/103,727,926.59 = 19,967,305.29/x - Step 3: Cross multiply
69,162,137.79x = 103,727,926.59 × 19,967,305.29 - Step 4: Simplify right side
69,162,137.79x = 2,071,167,177,321,238.75 - Step 5: Solve for x
x = 2,071,167,177,321,238.75/69,162,137.79 - Step 6: Final answer
x = 29,946,546.53
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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.