Finding the Fourth Proportional to 18,702,209.40, 28,046,315.70 and 6,566,983.80
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Solution
The fourth proportional to 18,702,209.40, 28,046,315.70 and 6,566,983.80 is: 9,848,018.32
Step by Step Solution
- Step 1: Write the proportion equation
18,702,209.40 : 28,046,315.70 = 6,566,983.80 : x - Step 2: Convert to fraction form
18,702,209.40/28,046,315.70 = 6,566,983.80/x - Step 3: Cross multiply
18,702,209.40x = 28,046,315.70 × 6,566,983.80 - Step 4: Simplify right side
18,702,209.40x = 184,179,700,851,585.66 - Step 5: Solve for x
x = 184,179,700,851,585.66/18,702,209.40 - Step 6: Final answer
x = 9,848,018.32
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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.