Finding the Fourth Proportional to 13,660,352.66, 18,851,280.44 and 7,548,727.70
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Solution
The fourth proportional to 13,660,352.66, 18,851,280.44 and 7,548,727.70 is: 10,417,240.78
Step by Step Solution
- Step 1: Write the proportion equation
13,660,352.66 : 18,851,280.44 = 7,548,727.70 : x - Step 2: Convert to fraction form
13,660,352.66/18,851,280.44 = 7,548,727.70/x - Step 3: Cross multiply
13,660,352.66x = 18,851,280.44 × 7,548,727.70 - Step 4: Simplify right side
13,660,352.66x = 142,303,182,837,896.19 - Step 5: Solve for x
x = 142,303,182,837,896.19/13,660,352.66 - Step 6: Final answer
x = 10,417,240.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.