Finding the Fourth Proportional to 69,721,115.34, 104,594,441.88 and 28,758,208.68
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Solution
The fourth proportional to 69,721,115.34, 104,594,441.88 and 28,758,208.68 is: 43,142,579.86
Step by Step Solution
- Step 1: Write the proportion equation
69,721,115.34 : 104,594,441.88 = 28,758,208.68 : x - Step 2: Convert to fraction form
69,721,115.34/104,594,441.88 = 28,758,208.68/x - Step 3: Cross multiply
69,721,115.34x = 104,594,441.88 × 28,758,208.68 - Step 4: Simplify right side
69,721,115.34x = 3,007,948,786,353,171.50 - Step 5: Solve for x
x = 3,007,948,786,353,171.50/69,721,115.34 - Step 6: Final answer
x = 43,142,579.86
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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.