Finding the Fourth Proportional to 207,330,908.61, 310,997,525.49 and 69,156,136.36
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Solution
The fourth proportional to 207,330,908.61, 310,997,525.49 and 69,156,136.36 is: 103,734,592.32
Step by Step Solution
- Step 1: Write the proportion equation
207,330,908.61 : 310,997,525.49 = 69,156,136.36 : x - Step 2: Convert to fraction form
207,330,908.61/310,997,525.49 = 69,156,136.36/x - Step 3: Cross multiply
207,330,908.61x = 310,997,525.49 × 69,156,136.36 - Step 4: Simplify right side
207,330,908.61x = 21,507,387,280,409,016 - Step 5: Solve for x
x = 21,507,387,280,409,016/207,330,908.61 - Step 6: Final answer
x = 103,734,592.32
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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.