Finding the Fourth Proportional to 18,992,987.68, 28,517,941.68 and 16,442,070.88
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Solution
The fourth proportional to 18,992,987.68, 28,517,941.68 and 16,442,070.88 is: 24,687,744.04
Step by Step Solution
- Step 1: Write the proportion equation
18,992,987.68 : 28,517,941.68 = 16,442,070.88 : x - Step 2: Convert to fraction form
18,992,987.68/28,517,941.68 = 16,442,070.88/x - Step 3: Cross multiply
18,992,987.68x = 28,517,941.68 × 16,442,070.88 - Step 4: Simplify right side
18,992,987.68x = 468,894,018,454,266.31 - Step 5: Solve for x
x = 468,894,018,454,266.31/18,992,987.68 - Step 6: Final answer
x = 24,687,744.04
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.