Finding the Fourth Proportional to 18,759,723.77, 25,867,860.84 and 12,221,228.00
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Solution
The fourth proportional to 18,759,723.77, 25,867,860.84 and 12,221,228.00 is: 16,851,901.93
Step by Step Solution
- Step 1: Write the proportion equation
18,759,723.77 : 25,867,860.84 = 12,221,228.00 : x - Step 2: Convert to fraction form
18,759,723.77/25,867,860.84 = 12,221,228.00/x - Step 3: Cross multiply
18,759,723.77x = 25,867,860.84 × 12,221,228.00 - Step 4: Simplify right side
18,759,723.77x = 316,137,025,068,572.19 - Step 5: Solve for x
x = 316,137,025,068,572.19/18,759,723.77 - Step 6: Final answer
x = 16,851,901.93
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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.