Finding the Fourth Proportional to 207,845,811.14, 311,837,957.14 and 69,685,089.62
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Solution
The fourth proportional to 207,845,811.14, 311,837,957.14 and 69,685,089.62 is: 104,550,848.88
Step by Step Solution
- Step 1: Write the proportion equation
207,845,811.14 : 311,837,957.14 = 69,685,089.62 : x - Step 2: Convert to fraction form
207,845,811.14/311,837,957.14 = 69,685,089.62/x - Step 3: Cross multiply
207,845,811.14x = 311,837,957.14 × 69,685,089.62 - Step 4: Simplify right side
207,845,811.14x = 21,730,455,990,218,620 - Step 5: Solve for x
x = 21,730,455,990,218,620/207,845,811.14 - Step 6: Final answer
x = 104,550,848.88
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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.