Finding the Fourth Proportional to 18,989,235.68, 28,488,334.08 and 6,209,690.72
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Solution
The fourth proportional to 18,989,235.68, 28,488,334.08 and 6,209,690.72 is: 9,316,001.27
Step by Step Solution
- Step 1: Write the proportion equation
18,989,235.68 : 28,488,334.08 = 6,209,690.72 : x - Step 2: Convert to fraction form
18,989,235.68/28,488,334.08 = 6,209,690.72/x - Step 3: Cross multiply
18,989,235.68x = 28,488,334.08 × 6,209,690.72 - Step 4: Simplify right side
18,989,235.68x = 176,903,743,764,835.72 - Step 5: Solve for x
x = 176,903,743,764,835.72/18,989,235.68 - Step 6: Final answer
x = 9,316,001.27
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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.