Finding the Fourth Proportional to 18,780,502.30, 28,172,656.14 and 6,482,862.79
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Solution
The fourth proportional to 18,780,502.30, 28,172,656.14 and 6,482,862.79 is: 9,724,950.98
Step by Step Solution
- Step 1: Write the proportion equation
18,780,502.30 : 28,172,656.14 = 6,482,862.79 : x - Step 2: Convert to fraction form
18,780,502.30/28,172,656.14 = 6,482,862.79/x - Step 3: Cross multiply
18,780,502.30x = 28,172,656.14 × 6,482,862.79 - Step 4: Simplify right side
18,780,502.30x = 182,639,464,185,471.03 - Step 5: Solve for x
x = 182,639,464,185,471.03/18,780,502.30 - Step 6: Final answer
x = 9,724,950.98
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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.