Finding the Fourth Proportional to 193,319,684.82, 289,889,623.71 and 70,412,439.42
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Solution
The fourth proportional to 193,319,684.82, 289,889,623.71 and 70,412,439.42 is: 105,585,913.75
Step by Step Solution
- Step 1: Write the proportion equation
193,319,684.82 : 289,889,623.71 = 70,412,439.42 : x - Step 2: Convert to fraction form
193,319,684.82/289,889,623.71 = 70,412,439.42/x - Step 3: Cross multiply
193,319,684.82x = 289,889,623.71 × 70,412,439.42 - Step 4: Simplify right side
193,319,684.82x = 20,411,835,567,966,968 - Step 5: Solve for x
x = 20,411,835,567,966,968/193,319,684.82 - Step 6: Final answer
x = 105,585,913.75
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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.