Finding the Fourth Proportional to 12,120,913.49, 16,727,216.42 and 6,614,643.74
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Solution
The fourth proportional to 12,120,913.49, 16,727,216.42 and 6,614,643.74 is: 9,128,402.53
Step by Step Solution
- Step 1: Write the proportion equation
12,120,913.49 : 16,727,216.42 = 6,614,643.74 : x - Step 2: Convert to fraction form
12,120,913.49/16,727,216.42 = 6,614,643.74/x - Step 3: Cross multiply
12,120,913.49x = 16,727,216.42 × 6,614,643.74 - Step 4: Simplify right side
12,120,913.49x = 110,644,577,263,468.91 - Step 5: Solve for x
x = 110,644,577,263,468.91/12,120,913.49 - Step 6: Final answer
x = 9,128,402.53
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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.